[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CSS](./puppeteer.protocol.css.md) > [CSSStyleSheetHeader](./puppeteer.protocol.css.cssstylesheetheader.md) > [hasSourceURL](./puppeteer.protocol.css.cssstylesheetheader.hassourceurl.md) ## Protocol.CSS.CSSStyleSheetHeader.hasSourceURL property Whether the sourceURL field value comes from the sourceURL comment. Signature: ```typescript hasSourceURL?: boolean; ```