<link>-based API should be subject to CSP
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Description
Since <link rel="webbundle" ..> can be used to load or redirect loads of scripts it should be subject to CSPs script-src directive.
Especially the CSP nonce attribute should be verified in case a CSP restricts script loading based on nonces.
I.e. in the presence of a Content-Security-Policy script-src 'nonce-random123' header only <link rel="webbundle" nonce="random123" ..> should be allowed to execute.
Same holds true for <script type=”module” ..> or similar declarative script loading mechanisms.
/ cc @mikewest @arturjanc @koto
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Research direction
The payload names no files, tests, or implementation entry points. Begin with the proposed behavior and the CSP script-src nonce example; done should establish whether both declarative loading cases enforce the stated nonce requirement.
Written by the indexing model from the issue text.
Assessment
- Domain
- security, web-dev
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100