Failed to load module script: The server responded with a non-JavaScript MIME type of "text/html". GitHub Issue Type: Bug Does this issue occur when all extensions are disabled? Why don't math grad schools in the U.S. use entrance exams? Otherwise, that extension can be turned back on. Go to the website https://www.cdnpkg.com/. Chrome has changed the UI in 2022, so this is a new version of the most upvoted reply. You could also use a tool like fiddler to review the network traffic. This plugin enables more fine grained control of source map When dealing with a drought or a bushfire, is a million tons of water overkill? I found issues in the React repository that suggests the cause is a bug in their extension and is planned to be corrected soon - see issues 20091 and 20075. the earth is not flat. But the line was inside js.cookie.min.js. 2021-07-31 06:36:59. In the Preferences tab (left) look for Sources; 4. Code: Javascript. Ask Question Asked 11 months ago. It changes the file name and line that a console log comes from. The following code to replace the configuration option devtool: inline-source-map with an equivalent custom plugin configuration: If nothing helps, try to use different webpack devtool mode. Removed those strings once. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. To fix above warning we can use SourceMapDevToolPlugin. Why would this be the right answer? @RonniDC It is enough if you follow these answer steps and select the first option. 48h ago, my Sharepoint online apps suddenly stopped working. Uncheck "Enable JavaScript source maps".) I did not need to "Do this for one extension at a time" because the extension code shown in the extension list matched part of the error string. I changed the config to include, @MMachinegun, I have many instances of the webpack-config in my application's ecosystem. The warnings will be hidden. For a non-square, is there a prime number for which it is a primitive root? The topic 'DevTools failed to load source map: Could not load content' is closed to new replies. Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. //# sourceMappingURL=bootstrap.min.js.map where is this path? As to why this is breaking Vue DevTools I'm not totally sure. Make sure this is a Vite issue and not a framework-specific issue. Making statements based on opinion; back them up with references or personal experience. What is the difference between the root "hemi" and the root "semi"? Restart Browser if needed How can I find the MAC address of a host that is listening for wake on LAN packets? Set a listener to receive data-change events. Click the three-dot in the row of React developer tool. I appreciate this is part of your extensions, but I see this message in all sorts of places these days, and I hate it: how I fixed it (this fix seems to massively speed up the browser too) was by adding a dead file, physically create the file it wants it/where it wants it, as a blank file (for example, "popper.min.js.map"), make sure that "file": "*******" in the content of the blank file matches the name of your file ******.map (minus the word ".map"), (I suspect you could physically add this dead file method to the addon yourself.). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How to increase photo file size without resizing? You need to fix the underlying issue. How can a teacher help a student who has internalized mistakes? 1 Answer Answer Now Shaddy Just open the css and js files mentioned in above location. Stack Overflow for Teams is moving to its own domain! I had the same error, when trying to code in Backbone.js. It should not affect your own scripts if it is connected to an extension. Is this a general problem? Check the developer tools in other pages and you will see the same warning. Webpack: make it ignore source files that can't be found? EOS Webcam Utility not working with Slack, How to keep running DOS 16 bit applications when Windows 11 drops NTVDM. Instead you want to find the extensions that are causing the messages and turn them off. Surprisingly found a reference in the file bootstrap.min.js for bootstrap.min.js.map as below: As it is commented didnt pay much attention to it! Then, look for Sources, and disable the options: If you do that, that would get rid of the warnings. There is a problem with loading authorizations for my apps. Make sure that's what you want. In this case, please .. DevTools failed to load SourceMap: Could not load content for ***.js.map: HTTP error: status code 404, net:: . Otherwise you can download the .map file from official sites like Bootstrap, jQuery, font-awesome, preload and so on (maybe installing things like popper or swiper by the npm command in a random folder and copying just the .map file in your JavaScript/CSS destination folder). Thanks a lot. is "life is too short to count calories" grammatically wrong? Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, 'DevTools failed to load source map: Could not load content for' warnings on Chrome DevTools, Fighting to balance identity and anonymity on the web(3) (Ep. How to fix Failed to synchronize cache for repo appstream, Fix Fatal error: Uncaught exception Exception with message Google PHP API Client requires the CURL PHP extension, Install Qiskit on Windows 10 and Setup Jupyter Notebook, Free screen recording extension enables voice, camera and system audio Output in latest webm format, Session Hijacking VAPT Vulnerability Detection & Prevention. They are called SourceMaps. More commonly, however, a browser extension has blocked a request. The "Selected context only" means only the top, iframe, worker and extension contexts. @JuanCarlosPuerto I had 10 of these warnings on my Drupal website. Do I get any security benefits by natting a a network that's already behind a firewall? HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE Source maps allow browsers to load full versions of minified JS and CSS files. Your answer gets rid of the warning, but do you know the proper solution instead of just disabling it? I get this error for. Viewed 230 times 0 New! If you click the link you'll see in the url that it's related to an extension. devtool: source-map was working up until yesterday. How can I test for impurities in my steel wool? Rebuild of DB fails, yet size of the DB has doubled, How to efficiently find all element combination including a certain element in the list. I am developing an spfx web part, and debugging using the hosted workbench. (I read in another comment here that you might try enabling more permissions for an extension instead of removing it.) You can see them again by unticking the same box. @Phng Nam's answer will solve this error but even after setting filename: "[name].js", webpack may warn us regarding the conflict of multiple assets emitting to the same filename. Open Developer Tools, go to "Settings" for Developer Tools, then uncheck Enable JavaScript Sourcemaps under the "Sources" settings. To better understand what a source map is, I suggest you check out this answer, where it explains how it's something that helps you debug: The .map files are for JavaScript and CSS (and now TypeScript too) files that have been minified. I see this error in the browser console: DevTools failed to load source map: Could not load content for https://amcdn.msftauth.net/meInlineBackCompat.min.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE, It seems that this service: https://amcdn.msftauth.net is unreachable. The "source map" is a special file that is used only to make it easier for developers to check code in minified JS file in a human readable form. To generate source maps for snabbdom-test project in general you can use SourceMapDevToolPlugin. Go to Developer tools Settings Console tick "Selected context only". Merge from mozilla-central up to bug 827490 (will need more work). If you need it, then contact the maker to have them fix the issue. When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. Thanks for contributing an answer to Stack Overflow! If you put a log in a js file it indicates the compiled es5 file (main.chunk.js: line number) instead of the actual file (f.i index.js: line), mine was caused by a webpack-config. Download what you need and copy it to the right folder. The sourcemap isn't needed for script execution, it's a mapping between minified JS and the source file it came from. The following code to replace the configuration option devtool: inline-source-map with an equivalent custom plugin configuration: For Reference: https://stackoverflow.com/questions/61339968/devtools-failed-to-load-sourcemap-could-not-load-content-for-chrome-extension My browser lists the desired files are chrome extensions for example: 2022 Update I can't even find this in the Chrome menus. Not the answer you're looking for? FAILURE: Build failed with an exception react native android; faker js; FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory. It is also possible to add the file that is missing, aside with other .js libraries in the same folder (no need to reference the .map in the .html file,