Error Message “devtools Failed To Load SourceMap: Could Not Load Content For Chrome-extension://…”

The error message "DevTools failed to load SourceMap: Could not load content for chrome-extension://" typically occurs when the Chrome DevTools encounters an error while trying to load the SourceMap file for a JavaScript or CSS file from a Chrome extension.

SourceMaps are files that allow developers to debug minified or transpiled code, by mapping it back to its original source code. Chrome extensions may come with their own SourceMap files to facilitate debugging.

To resolve this error message, you can follow these steps:

  1. Disable Chrome extensions: Disable all extensions one by one and reload the webpage to identify the extension causing the error. This helps determine if any specific extension is interfering with the SourceMap loading process.

  2. Check for updates: Make sure that both Chrome and the problematic extension are up-to-date. An outdated extension may cause compatibility issues with the DevTools.

  3. Clear cache and data: Clear your browser cache and cookies to ensure that there are no conflicts from cached files. Open Chrome DevTools, right-click the reload button, and select "Empty Cache and Hard Reload".

  4. Reinstall or update the extension: If you have identified the extension responsible for the error, try updating or reinstalling it from the Chrome Web Store.

  5. Report the issue: If none of the above steps resolve the error, report the issue to the developer of the problematic extension. Provide details about the error message, your Chrome version, and any other relevant information.

Remember that this error message does not necessarily indicate a critical issue, and it should not affect the normal functioning of your website or application. It is primarily related to the developer tools and the debugging experience.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!