Error 'jquery-2.0.2.min.map not found'

Question

I\'m getting this error in Google Chrome developer tools:

jquery-2.0.2.min.map not found

I found a way to get rid of it by remov

Answer 1

You can remove the 404 by removing the line

//@ sourceMappingURL=jquery-2.1.2.min.map

from the top part of your jQuery file.

Purpose of a source map

Basically it's a way to map a combined/minified file back to an unbuilt state. When you build for production, along with minifying and combining your JavaScript files, you generate a source map which holds information about your original files. When you query a certain line and column number in your generated JavaScript you can do a lookup in the source map which returns the original location.