Solution: DevTools failed to load SourceMap:… net::ERR_HTTP_RESPONSE_CODE_FAILURE problem

This error has been reported consistently in the Google Chrome developer console.

first solution:

    1. in the Google chrome debugging tool, set the debugging tool, click on it and select Settings

    1. close this option

    although this is a good way to hide errors, it doesn’t make them disappear, it’s just that you can’t see it in the controller. Another option is to download the missing map file (a brief discussion of the principles will follow).

The second:

    1. has a file that refers to the source mapping file that does not exist, just like the warning in my first picture pointed to the file

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