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docs: use debug namespace instead of all namespaces (#1174)

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This changes the debugging instructions to be specific to puppeteer, preventing new users (or those that copy-paste) from getting logs from other libraries that use the `debug` module.
This commit is contained in:
Ilya Radchenko 2017-10-27 05:15:15 -04:00 committed by Andrey Lushnikov
parent d9acf1ead5
commit 380bb6a87f
1 changed files with 6 additions and 6 deletions
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12
README.md
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@ -160,19 +160,19 @@ Explore the [API documentation](docs/api.md) and [examples](https://github.com/G
1. Enable verbose logging - All public API calls and internal protocol traffic
will be logged via the [`debug`](https://github.com/visionmedia/debug) module.
will be logged via the [`debug`](https://github.com/visionmedia/debug) module under the `puppeteer` namespace.
```sh
# Basic verbose logging
env DEBUG="*" node script.js
env DEBUG="puppeteer:*" node script.js
# Debug output can be enabled/disabled by namespace
env DEBUG="*,-*:protocol" node script.js # everything BUT protocol messages
env DEBUG="*:session" node script.js # protocol session messages (protocol messages to targets)
env DEBUG="*:mouse,*:keyboard" node script.js # only Mouse and Keyboard API calls
env DEBUG="puppeteer:*,-puppeteer:protocol" node script.js # everything BUT protocol messages
env DEBUG="puppeteer:session" node script.js # protocol session messages (protocol messages to targets)
env DEBUG="puppeteer:mouse,puppeteer:keyboard" node script.js # only Mouse and Keyboard API calls
# Protocol traffic can be rather noisy. This example filters out all Network domain messages
env DEBUG="*" env DEBUG_COLORS=true node script.js 2>&1 | grep -v '"Network'
env DEBUG="puppeteer:*" env DEBUG_COLORS=true node script.js 2>&1 | grep -v '"Network'
```