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I'm making a game with a library called Processing.js. This library has two built in functions that allow me to save and retrieve information from a .txt file. But when I tried to use this functions to retrieve scores, it didn't work. I checked the console and found the following error message:

Refused to connect to '[url]' because it violates the following Content Security Policy directive: "default-src 'none'". Note that 'connect-src' was not explicitly set, so 'default-src' is used as a fallback.

I'm very new to web development and have no idea what this means.

Can anyone help me? Thanks in advanced

marked as duplicate by Xiong Chiamiov, Steffen Ullrich, iwaseatenbyagrue, Serge Ballesta, Anders Apr 17 '17 at 16:47

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  • have you looked up what default-src 'none'is and what it means? – schroeder Apr 14 '17 at 22:21
  • @schroeder Yes, I have. As I understand it, it's the fallback URL for other directives (like style-src) to follow if they don't have a specified URL. – Larpee Apr 15 '17 at 11:58
  • @schroeder What I don't understand is how I can change it to make the error message go away – Larpee Apr 15 '17 at 11:59
  • @schroeder I think the problem is in the .txt file, because I tried retrieving it from somewhere else and the same error appeared – Larpee Apr 15 '17 at 12:02