Quick Fix: While encountering such CSP directive errors it is better to connect with the support of the respective file which indicates CSP error. Requesting help from the support that manages said file can be a potential solution.
The Solutions:
Solution 1: Contact Service Provider
For CSP errors concerning a third-party script file, the solution is to get in touch with the service provider that manages the problematic file. They should be able to provide guidance on how to resolve the CSP policy violation.
In this particular case, since the error is related to the Stripe integration, you should reach out to Stripe’s support team. They will be able to help you determine the appropriate CSP directive to allow the Stripe script to run without violating the policy.
Solution 1: Fix the Report-Only Policy
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The error message indicates that the "Content-Security-Policy-Report-Only" response header is being set somewhere. This header is used to report CSP violations without actually blocking them. To fix the error, you need to identify where this header is being set and modify it to just "Content-Security-Policy." Once you do this, the inline script will be allowed to execute.
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Note: Adding ‘unsafe-inline’ to the CSP is not recommended as it can make your website vulnerable to XSS attacks. If you need to allow inline scripts, it’s better to use a hash or nonce-based CSP policy.
Solution 4: Inspecting Report Only Errors
The “Report Only” mode of Content Security Policy (CSP) is meant to help you test and debug your CSP rules without actually blocking any content. This means that the error message you are seeing is most likely not actually affecting the execution of your inline script.
To verify this, you can try disabling the “Report Only” mode by removing the report-only directive from your CSP header. If the inline script starts working, then you can be sure that the error was just a warning and not an actual policy violation.
If you are still having problems, you can try the following:
Make sure that the URL of the inline script is included in the script-src directive of your CSP header.
If the inline script is being loaded from a third-party server, you may need to add a crossorigin attribute to the <script> tag. This will allow the script to be loaded from a different origin than the main document.
If you are using a CDN to serve your inline scripts, you may need to add a Content-Security-Policy header to the CDN’s response. This will tell the browser to allow the inline script to be executed.
Q&A
What causes the CSP error when integrating Stripe to a website?
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Violation of Content Security Policy (CSP) directive due to inline script execution.
How can I enable inline script execution?
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Add ‘unsafe-inline’ keyword, a hash, or a nonce in the CSP directive.
Why is the CSP error still occurring despite adding directives in the meta tag?
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The error is likely caused by a file hosted on a remote server, which is not affected by local CSP directives.
Video Explanation:
The following video, titled "HTML : Refused to load the script because it violates the following ...", provides additional insights and in-depth exploration related to the topics discussed in this post.
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