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itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_OVgt"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Puppeteer</span><meta itemprop="position" content="1"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: 19.0.0</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>Puppeteer</h1><p><a href="https://github.com/puppeteer/puppeteer/actions?query=workflow%3ACI" target="_blank" rel="noopener noreferrer"><img loading="lazy" src="https://github.com/puppeteer/puppeteer/workflows/CI/badge.svg" alt="Build status" class="img_ev3q"></a> <a href="https://npmjs.org/package/puppeteer" target="_blank" rel="noopener noreferrer"><img loading="lazy" src="https://img.shields.io/npm/v/puppeteer.svg" alt="npm puppeteer package" class="img_ev3q"></a></p><img loading="lazy" src="https://user-images.githubusercontent.com/10379601/29446482-04f7036a-841f-11e7-9872-91d1fc2ea683.png" height="200" align="right" class="img_ev3q"><h4 class="anchor anchorWithStickyNavbar_LWe7" id="api--faq--contributing--troubleshooting"><a href="https://pptr.dev/api" target="_blank" rel="noopener noreferrer">API</a> | <a href="https://pptr.dev/faq" target="_blank" rel="noopener noreferrer">FAQ</a> | <a href="https://pptr.dev/contributing" target="_blank" rel="noopener noreferrer">Contributing</a> | <a href="https://pptr.dev/troubleshooting" target="_blank" rel="noopener noreferrer">Troubleshooting</a><a class="hash-link" href="#api--faq--contributing--troubleshooting" title="Direct link to heading"></a></h4><blockquote><p>Puppeteer is a Node.js library which provides a high-level API to control Chrome/Chromium over the <a href="https://chromedevtools.github.io/devtools-protocol/" target="_blank" rel="noopener noreferrer">DevTools Protocol</a>. Puppeteer runs in <a href="https://developers.google.com/web/updates/2017/04/headless-chrome" target="_blank" rel="noopener noreferrer">headless</a> mode by default, but can be configured to run in full (non-headless) Chrome/Chromium.</p></blockquote><h4 class="anchor anchorWithStickyNavbar_LWe7" id="what-can-i-do">What can I do?<a class="hash-link" href="#what-can-i-do" title="Direct link to heading"></a></h4><p>Most things that you can do manually in the browser can be done using Puppeteer! Here are a few examples to get you started:</p><ul><li>Generate screenshots and PDFs of pages.</li><li>Crawl a SPA (Single-Page Application) and generate pre-rendered content (i.e. "SSR" (Server-Side Rendering)).</li><li>Automate form submission, UI testing, keyboard input, etc.</li><li>Create an automated testing environment using the latest JavaScript and browser features.</li><li>Capture a <a href="https://developers.google.com/web/tools/chrome-devtools/evaluate-performance/reference" target="_blank" rel="noopener noreferrer">timeline trace</a> of your site to help diagnose performance issues.</li><li>Test Chrome Extensions.</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="getting-started">Getting Started<a class="hash-link" href="#getting-started" title="Direct link to heading"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="installation">Installation<a class="hash-link" href="#installation" title="Direct link to heading"></a></h3><p>To use Puppeteer in your project, run:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token function" style="color:#d73a49">npm</span><span class="token plain"> i puppeteer</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># or `yarn add puppeteer`</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic"># or `pnpm i puppeteer`</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>When you install Puppeteer, it automatically downloads a recent version of Chromium (~170MB macOS, ~282MB Linux, ~280MB Windows) that is <a href="https://pptr.dev/faq#q-why-doesnt-puppeteer-vxxx-work-with-chromium-vyyy" target="_blank" rel="noopener noreferrer">guaranteed to work</a> with Puppeteer. For a version of Puppeteer without installation, see <a href="#puppeteer-core"><code>puppeteer-core</code></a>.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="environment-variables">Environment Variables<a class="hash-link" href="#environment-variables" title="Direct link to heading"></a></h4><p>Puppeteer looks for certain <a href="https://en.wikipedia.org/wiki/Environment_variable" target="_blank" rel="noopener noreferrer">environment variables</a> for customizing behavior.
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If Puppeteer doesn't find them in the environment during the installation step, a lowercased variant of these variables will be used from the <a href="https://docs.npmjs.com/cli/config" target="_blank" rel="noopener noreferrer">npm config</a>.</p><ul><li><code>HTTP_PROXY</code>, <code>HTTPS_PROXY</code>, <code>NO_PROXY</code> - defines HTTP proxy settings that are used to download and run the browser.</li><li><code>PUPPETEER_CACHE_DIR</code> - defines the directory to be used by Puppeteer for caching. Defaults to <a href="https://nodejs.org/api/os.html#os_os_homedir" target="_blank" rel="noopener noreferrer"><code>os.homedir()/.cache/puppeteer</code></a>.</li><li><code>PUPPETEER_SKIP_CHROMIUM_DOWNLOAD</code> - do not download bundled Chromium during installation step.</li><li><code>PUPPETEER_TMP_DIR</code> - defines the directory to be used by Puppeteer for creating temporary files. Defaults to <a href="https://nodejs.org/api/os.html#os_os_tmpdir" target="_blank" rel="noopener noreferrer"><code>os.tmpdir()</code></a>.</li><li><code>PUPPETEER_DOWNLOAD_HOST</code> - specifies the URL prefix that is used to download Chromium. Note: this includes protocol and might even include path prefix. Defaults to <code>https://storage.googleapis.com</code>.</li><li><code>PUPPETEER_DOWNLOAD_PATH</code> - specifies the path for the downloads folder. Defaults to <code><cache>/chromium</code>, where <code><cache></code> is Puppeteer's cache directory.</li><li><code>PUPPETEER_BROWSER_REVISION</code> - specifies a certain version of the browser you'd like Puppeteer to use. See <a href="https://pptr.dev/api/puppeteer.puppeteernode.launch" target="_blank" rel="noopener noreferrer"><code>puppeteer.launch</code></a> on how executable path is inferred.</li><li><code>PUPPETEER_EXECUTABLE_PATH</code> - specifies an executable path to be used in <a href="https://pptr.dev/api/puppeteer.puppeteernode.launch" target="_blank" rel="noopener noreferrer"><code>puppeteer.launch</code></a>.</li><li><code>PUPPETEER_PRODUCT</code> - specifies which browser you'd like Puppeteer to use. Must be either <code>chrome</code> or <code>firefox</code>. This can also be used during installation to fetch the recommended browser binary. Setting <code>product</code> programmatically in <a href="https://pptr.dev/api/puppeteer.puppeteernode.launch" target="_blank" rel="noopener noreferrer"><code>puppeteer.launch</code></a> supersedes this environment variable.</li><li><code>PUPPETEER_EXPERIMENTAL_CHROMIUM_MAC_ARM</code> — specify Puppeteer download Chromium for Apple M1. On Apple M1 devices Puppeteer by default downloads the version for Intel's processor which runs via Rosetta. It works without any problems, however, with this option, you should get more efficient resource usage (CPU and RAM) that could lead to a faster execution time.</li></ul><p>Environment variables except for <code>PUPPETEER_CACHE_DIR</code> are not used for <a href="#puppeteer-core"><code>puppeteer-core</code></a> since core does not automatically handle browser downloading.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="puppeteer-core"><code>puppeteer-core</code><a class="hash-link" href="#puppeteer-core" title="Direct link to heading"></a></h4><p>Every release since v1.7.0 we publish two packages:</p><ul><li><a href="https://www.npmjs.com/package/puppeteer" target="_blank" rel="noopener noreferrer"><code>puppeteer</code></a></li><li><a href="https://www.npmjs.com/package/puppeteer-core" target="_blank" rel="noopener noreferrer"><code>puppeteer-core</code></a></li></ul><p><code>puppeteer</code> is a <em>product</em> for browser automation. When installed, it downloads a version of
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Chromium, which it then drives using <code>puppeteer-core</code>. Being an end-user product, <code>puppeteer</code> supports a bunch of convenient <code>PUPPETEER_*</code> env variables to tweak its behavior.</p><p><code>puppeteer-core</code> is a <em>library</em> to help drive anything that supports DevTools protocol. <code>puppeteer-core</code> doesn't download Chromium when installed. Being a library, <code>puppeteer-core</code> is fully driven through its programmatic interface.</p><p>You should only use <code>puppeteer-core</code> if you are <a href="https://pptr.dev/api/puppeteer.puppeteer.connect" target="_blank" rel="noopener noreferrer">connecting to a remote browser</a> or <a href="https://pptr.dev/api/puppeteer.browserfetcher" target="_blank" rel="noopener noreferrer">managing browsers yourself</a>. If you are managing browsers yourself, you will need to call <a href="https://pptr.dev/api/puppeteer.puppeteernode.launch" target="_blank" rel="noopener noreferrer"><code>puppeteer.launch</code></a> with an explicit <a href="https://pptr.dev/api/puppeteer.launchoptions.executablepath" target="_blank" rel="noopener noreferrer"><code>executablePath</code></a> or <a href="https://pptr.dev/api/puppeteer.launchoptions.channel" target="_blank" rel="noopener noreferrer"><code>channel</code></a>.</p><p>When using <code>puppeteer-core</code>, remember to change the import:</p><div class="language-ts codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-ts codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> puppeteer </span><span class="token keyword" style="color:#00009f">from</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">'puppeteer-core'</span><span class="token punctuation" style="color:#393A34">;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="usage">Usage<a class="hash-link" href="#usage" title="Direct link to heading"></a></h3><p>Puppeteer follows the latest <a href="https://github.com/nodejs/Release#release-schedule" target="_blank" rel="noopener noreferrer">maintenance LTS</a> version of Node.</p><p>Puppeteer will be familiar to people using other browser testing frameworks. You <a href="https://pptr.dev/api/puppeteer.puppeteernode.launch" target="_blank" rel="noopener noreferrer">launch</a>/<a href="https://pptr.dev/api/puppeteer.puppeteernode.connect" target="_blank" rel="noopener noreferrer">connect</a> a <a href="https://pptr.dev/api/puppeteer.browser" target="_blank" rel="noopener noreferrer">browser</a>, <a href="https://pptr.dev/api/puppeteer.browser.newpage" target="_blank" rel="noopener noreferrer">create</a> some <a href="https://pptr.dev/api/puppeteer.page" target="_blank" rel="noopener noreferrer">pages</a>, and then manipulate them with <a href="https://pptr.dev/api" target="_blank" rel="noopener noreferrer">Puppeteer's API</a>.</p><p>For more in-depth usage, check our <a href="https://pptr.dev/guides" target="_blank" rel="noopener noreferrer">guides</a> and <a href="https://github.com/puppeteer/puppeteer/tree/main/examples" target="_blank" rel="noopener noreferrer">examples</a>.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="example">Example<a class="hash-link" href="#example" title="Direct link to heading"></a></h4><p>The following example searches <a href="https://developers.google.com/web" target="_blank" rel="noopener noreferrer">developers.google.com/web</a> for articles tagged "Headless Chrome" and scrape results from the results page.</p><div class="language-ts codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-ts codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> puppeteer </span><span class="token keyword" style="color:#00009f">from</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">'puppeteer'</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">(</span><span class="token keyword" style="color:#00009f">async</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=></span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> browser </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> puppeteer</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">launch</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> page </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> browser</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">newPage</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> page</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">goto</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">'https://developers.google.com/web/'</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">// Type into search box.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> page</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">type</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">'.devsite-search-field'</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">'Headless Chrome'</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">// Wait for suggest overlay to appear and click "show all results".</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> allResultsSelector </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">'.devsite-suggest-all-results'</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> page</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">waitForSelector</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">allResultsSelector</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> page</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">click</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">allResultsSelector</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">// Wait for the results page to load and display the results.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> resultsSelector </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">'.gsc-results .gs-title'</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> page</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">waitForSelector</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">resultsSelector</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">// Extract the results from the page.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> links </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> page</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">evaluate</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">resultsSelector </span><span class="token operator" style="color:#393A34">=></span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">[</span><span class="token operator" style="color:#393A34">...</span><span class="token plain">document</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">querySelectorAll</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">resultsSelector</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">]</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">map</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">anchor </span><span class="token operator" style="color:#393A34">=></span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> title </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> anchor</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">textContent</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">split</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">'|'</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">[</span><span class="token number" style="color:#36acaa">0</span><span class="token punctuation" style="color:#393A34">]</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">trim</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token plain"> </span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token template-string interpolation interpolation-punctuation punctuation" style="color:#393A34">${</span><span class="token template-string interpolation">title</span><span class="token template-string interpolation interpolation-punctuation punctuation" style="color:#393A34">}</span><span class="token template-string string" style="color:#e3116c"> - </span><span class="token template-string interpolation interpolation-punctuation punctuation" style="color:#393A34">${</span><span class="token template-string interpolation">anchor</span><span class="token template-string interpolation punctuation" style="color:#393A34">.</span><span class="token template-string interpolation">href</span><span class="token template-string interpolation interpolation-punctuation punctuation" style="color:#393A34">}</span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> resultsSelector</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">// Print all the files.</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token builtin">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">links</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">join</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">'\n'</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> browser</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">close</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="default-runtime-settings">Default runtime settings<a class="hash-link" href="#default-runtime-settings" title="Direct link to heading"></a></h3><p><strong>1. Uses Headless mode</strong></p><p>Puppeteer launches Chromium in <a href="https://developers.google.com/web/updates/2017/04/headless-chrome" target="_blank" rel="noopener noreferrer">headless mode</a>. To launch a full version of Chromium, set the <a href="https://pptr.dev/api/puppeteer.browserlaunchargumentoptions.headless" target="_blank" rel="noopener noreferrer"><code>headless</code></a> option when launching a browser:</p><div class="language-ts codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-ts codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> browser </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> puppeteer</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">launch</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain">headless</span><span class="token operator" style="color:#393A34">:</span><span class="token plain"> </span><span class="token boolean" style="color:#36acaa">false</span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">// default is true</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p><strong>2. Runs a bundled version of Chromium</strong></p><p>By default, Puppeteer downloads and uses a specific version of Chromium so its API
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is guaranteed to work out of the box. To use Puppeteer with a different version of Chrome or Chromium,
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pass in the executable's path when creating a <code>Browser</code> instance:</p><div class="language-ts codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-ts codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> browser </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">await</span><span class="token plain"> puppeteer</span><span class="token punctuation" style="color:#393A34">.</span><span class="token function" style="color:#d73a49">launch</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain">executablePath</span><span class="token operator" style="color:#393A34">:</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">'/path/to/Chrome'</span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>You can also use Puppeteer with Firefox Nightly (experimental support). See <a href="https://pptr.dev/api/puppeteer.puppeteernode.launch" target="_blank" rel="noopener noreferrer"><code>Puppeteer.launch</code></a> for more information.</p><p>See <a href="https://www.howtogeek.com/202825/what%E2%80%99s-the-difference-between-chromium-and-chrome/" target="_blank" rel="noopener noreferrer"><code>this article</code></a> for a description of the differences between Chromium and Chrome. <a href="https://chromium.googlesource.com/chromium/src/+/refs/heads/main/docs/chromium_browser_vs_google_chrome.md" target="_blank" rel="noopener noreferrer"><code>This article</code></a> describes some differences for Linux users.</p><p><strong>3. Creates a fresh user profile</strong></p><p>Puppeteer creates its own browser user profile which it <strong>cleans up on every run</strong>.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="using-docker">Using Docker<a class="hash-link" href="#using-docker" title="Direct link to heading"></a></h4><p>See our <a href="https://pptr.dev/guides/docker" target="_blank" rel="noopener noreferrer">guide on using Docker</a>.</p><h4 class="anchor anchorWithStickyNavbar_LWe7" id="using-chrome-extensions">Using Chrome Extensions<a class="hash-link" href="#using-chrome-extensions" title="Direct link to heading"></a></h4><p>See our <a href="https://pptr.dev/guides/chrome-extensions" target="_blank" rel="noopener noreferrer">guide on using Chrome extensions</a>.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="resources">Resources<a class="hash-link" href="#resources" title="Direct link to heading"></a></h2><ul><li><a href="https://pptr.dev/api" target="_blank" rel="noopener noreferrer">API Documentation</a></li><li><a href="https://pptr.dev/guides" target="_blank" rel="noopener noreferrer">Guides</a></li><li><a href="https://github.com/puppeteer/puppeteer/tree/main/examples" target="_blank" rel="noopener noreferrer">Examples</a></li><li><a href="https://github.com/transitive-bullshit/awesome-puppeteer" target="_blank" rel="noopener noreferrer">Community list of Puppeteer resources</a></li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="contributing">Contributing<a class="hash-link" href="#contributing" title="Direct link to heading"></a></h2><p>Check out our <a href="https://pptr.dev/contributing" target="_blank" rel="noopener noreferrer">contributing guide</a> to get an overview of Puppeteer development.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="faq">FAQ<a class="hash-link" href="#faq" title="Direct link to heading"></a></h2><p>Our <a href="https://pptr.dev/faq" target="_blank" rel="noopener noreferrer">FAQ</a> has migrated to <a href="https://pptr.dev/faq" target="_blank" rel="noopener noreferrer">our site</a>.</p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--next" href="/faq"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">FAQ</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#getting-started" class="table-of-contents__link toc-highlight">Getting Started</a><ul><li><a href="#installation" class="table-of-contents__link toc-highlight">Installation</a></li><li><a href="#usage" class="table-of-contents__link toc-highlight">Usage</a></li><li><a href="#default-runtime-settings" class="table-of-contents__link toc-highlight">Default runtime settings</a></li></ul></li><li><a href="#resources" class="table-of-contents__link toc-highlight">Resources</a></li><li><a href="#contributing" class="table-of-contents__link toc-highlight">Contributing</a></li><li><a href="#faq" class="table-of-contents__link toc-highlight">FAQ</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://stackoverflow.com/questions/tagged/puppeteer" target="_blank" rel="noopener noreferrer" class="footer__link-item">Stack Overflow<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://twitter.com/chromedevtools" target="_blank" rel="noopener noreferrer" class="footer__link-item">Twitter<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://goo.gle/devtools-youtube" target="_blank" rel="noopener noreferrer" class="footer__link-item">YouTube<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2022 Google, Inc.</div></div></div></footer></div>
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