Content Security Policy directive: Refused to load the font

Question

I created a angular project using angular-cli but when I start this project using

npm start

it is showing

Refused to load the font 'data:font/woff;base64,d09GRgABAAAAAGVUABEAAAAAxuQAAQABAAAAAAAAAAAAAAAAAAAAAAAAAABHREVGAAABgAAAAC4AAAA0ArgC7UdQT1MAAAGwAAAQ6AAALgxKsqRTR1NVQgAAEpgAAAH3AAAELqI5y+RPUy8yAAAUkAAAAE8AAABgaGyBu2NtYXAAABTgAAABlAAAAkQkRATXY3Z0IAAAFnQAAABeAAAAugDsQf1mcGdtAAAW1AAABZcAAAvNb3/BHGdhc3AAABxsAAAACAAAAAgAAAAQZ2x5ZgAAHHQAAEApAAB3CtbiupxoZWFkAABcoAAAADYAAAA2BkubWWhoZWEAAFzYAAAAIAAAACQHFARfaG10eAAAXPgAAAI6AAAEEk4TN4Nsb2NhAABfNAAAAhIAAAISiLhpam1heHAAAGFIAAAAIAAAACACigzgbmFtZQAAYWgAAACUAAABHhQGLdJwb3N0AABh/AAAAq4AAASRk5y6n3ByZ...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' because it violates the following Content Security Policy directive: "default-src 'self'". Note that 'font-src' was not explicitly set, so 'default-src' is used as a fallback.

I read some SO answers then got the point that I need to set CSP meta tag so I added

<meta http-equiv="Content-Security-Policy" content="default-src 'self'; font-src 'self' data: fonts.gstatic.com">

in my index.html file. But this is still showing the same error logs on browser console. Any help?

This project is in a directory which is a git directory hosted on https://www.visualstudio.com/ .

when I move this project from this git directory to somewhere else and run, It works. I don't know what is the reason?

Answer 1

If you were getting the error before you set the CSP in a meta tag then there is already an existing CSP in place. Check for other meta tags in the document or check the HTTP response header. You can use https://securityheaders.io/ to scan your application and see if there is a CSP set.

Note: If you do set CSP in a meta tag the tag needs to be placed into the page prior to any asset you want to whitelist using it. The <meta> tag should be placed as early in the page as possible.

Answer 2

https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com data:;">

^ Should do the trick