Chrome content security policy- refused to load the script

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Refused to load the script 'https://localhost:5000/_framework/123.js' because it violates the following Content Security Policy directive
I have set

<meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' http://* 'unsafe-inline'; script-src 'self' http://* 'unsafe-inline' 'unsafe-eval'" />

But it still doesn't work.

What I have tried:

<meta http-equiv="Content-Security-Policy" content="script-src 'self' http://* 'unsafe-inline' 'unsafe-eval'" />

Posted 27-Jan-21 14:31pm

rtksmithjoton123

Updated 27-Jan-21 21:29pm

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thatraja · Answer 1 · 2021-01-27T17:45:00

Solution 1

Protocol is not matching(Your js URL & Host from Meta)
Try putting https://localhost instead of http://*

Check below page to learn about Content Security Policy & its syntax & samples
CSP Cheat Sheet[^]

Posted 27-Jan-21 17:45pm

thatraja

Member 15058307 · Answer 2 · 2021-01-27T21:29:00

`http://*` source covers `https://localhost:80` and `https://localhost:443` with standard ports only.
But you try to load script `https://localhost:5000/` with :5000 port number.

To fix the issue you have to add `https://localhost:5000` host-source to the script-src directive. Alternatively you can use syntax 'https://localhost:*' to allow any ports.

Note: `http://*` source covers both `http://*` and `https://*` because CSP3 browsers do upgrade insecure http: to a secure https:.
Therefore `http://site.com` allows both `http://site.com` and `https://site.com`.