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

  • have you looked up what default-src 'none'is and what it means?
    – schroeder
    Apr 14, 2017 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, 2017 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, 2017 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, 2017 at 12:02


Browse other questions tagged .