angular.min.js.map not found, what is it exactly?

As eaon21 and monkey said, source map files basically turn minified code into its unminified version for debugging.

You can find the .map files here. Just add them into the same directory as the minified js files and it’ll stop complaining. The reason they get fetched is the

/*
//@ sourceMappingURL=angular.min.js.map
*/

at the end of angular.min.js. If you don’t want to add the .map files you can remove those lines and it’ll stop the fetch attempt, but if you plan on debugging it’s always good to keep the source maps linked.

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