Javascript-css requests block webpage loading and how to find the request source.

Each time I debug a webpage locally, a css request is loaded: fonts. googleapis. comcss? FamilySource + Sans + Pro: 300,400,600,700,300 italic, 400 italic, and 600italic. However, the request may fail due to the wall or any such request and the webpage is blocked...

Each time I debug a webpage locally, a css request is loaded:
Http://fonts.googleapis.com/css? Family = Source + Sans + Pro: 300,400,600,700,300 italic, 400 italic, 600 italic
However, it may be because the request is failed by the wall or the request and the webpage rendering is blocked. So I want to find out which file the css request was issued and eliminate it, but the debugging tool located it. the request is not found in the file ..

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Each time I debug a webpage locally, a css request is loaded:
Http://fonts.googleapis.com/css? Family = Source + Sans + Pro: 300,400,600,700,300 italic, 400 italic, 600 italic
However, it may be because the request is failed by the wall or the request and the webpage rendering is blocked. So I want to find out which file the css request was issued and eliminate it, but the debugging tool located it. the request is not found in the file ..

If you have an address, you can search for it directly in the code.
Some JS may not be called by your program, but by the Extended Program.

This 69 rows is the number of lines that JS reports errors, not the number of lines that initiate the request. I think there should be an error message in the console, right? Search to see which JS initiated the request.

You can find it in the CSS file of bootstrap. @ Font