Error: Uncaught EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self'".

The error only shows in other browser and not chrome. I found some answers and they say to add

<meta http-equiv=Content-Security-Policy content=font-src 'self' 'unsafe-inline' data:; img-src 'self' data:; style-src 'self' 'unsafe-inline' data:; script-src 'unsafe-eval' 'unsafe-inline' data:; default-src 'self' localhost:*>

Reference: Content Security Policy

And after adding the meta tag an error pops up on refresh of the browser including chrome.

Error: Refused to load the script '' because it violates the following Content Security Policy directive: "script-src 'unsafe-eval' 'unsafe-inline' data:". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.

Please help.