I’m a web developer and rely on my console, and this morning I started getting all of these warnings clogging up my console. Makes my work more difficult/annoying.
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/autofill.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/autofiller.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/notificationBar.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/contextMenuHandler.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/shortcuts.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/message_handler.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/autofill.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/autofiller.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/notificationBar.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/contextMenuHandler.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
Until this is fixed, I did just find a setting in Chrome Dev tools Console tab called “Selected context only”. Turning that on hides the errors for now.
Hi @Nicodemus - have you tried updating your browser extension? There was a recent release that fixed some of the wierd behaviour on Chrome, and another one coming down anytime now.
OK, great. I see on the BW Github page that they have added bugfixes and are currently on release 1.56.3. Hopefully it appears on the Chrome store soon.
Hi, this is still an issue in the latest version 1.56.4
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/autofill.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/autofiller.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/notificationBar.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/contextMenuHandler.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/shortcuts.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for chrome-extension://nngceckbapebfimnlniiiahkandclblb/content/message_handler.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
This error is appeared because the WebView can’t recognize the URL Scheme,for example, the WebView will usually recognize only http and https, anything other than these. So WebView cannot parse it to right place, we should use intent to redirect the url. for example – intent://,market://,app://,mail:// etc will not be recognized by webview unless we add a handler to handle these url scheme or by disabling these schemes and only load http and https schemes.
This error has no any specific solution till now. Android user and PC user all are facing this error which needs to be sought out. There’s a long-standing bug in Chromium regarding how links without protocols are handled. It occasionally is patched, but seems to keep resurfacing. In some cases, prefixing your links with http:// (or https://) should resolve the issue for you.
Also, in some cases, try to add target=“_blank” in your URL Scheme/Code. for example: