Content-Security-Policy and data URLs-images from CAPTCHA

Question

I'm trying to integrate AWS WAF CAPTCHA into my website which also uses Content-Security-Policy header.

But CAPTCHA JS-library tries to load SVG-images using data:-URLs and I get the following CSP-errors:

> Refused to load the image 'data:image/svg+xml;base64,PHN2ZyB3aWR0aD....gPC9zdmc+IA==' because it violates the following Content Security Policy directive: "img-src 'report-sample' 'self' .

I **don't want to allow data:-URLs**. Is there any other way to deal with it?

Ansh_C · Answer

Hello,

Thank you for contacting AWS re:Post

CAPTCHA JS-library is a subnet of JavaScript API. For JavaScript integration works with CSP, you must allow access to awswaf.com domain
https://docs.aws.amazon.com/waf/latest/developerguide/waf-javascript-api-csp.html

If you apply content security policies (CSP) to your resources, for your JavaScript implementation to work, you need to allowlist the AWS WAF apex domain awswaf.com.

Moreover, i would suggest you to reach out to the WAF team directly by using AWS premium support if the above solution does not work.

Thank you and Have a great day!

Content-Security-Policy and data URLs-images from CAPTCHA

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