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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