Add trusted-types and require-trusted-types-for CSP Directive #486
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KyFaSt
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lgarron
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Jun 21, 2022
spec/lib/secure_headers/headers/content_security_policy_spec.rb
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| expect(csp.value).to eq("trusted-types blahblahpolicy") | ||
| end | ||
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| it "allows duplicate policy names in trusted-types directive" do |
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Would it make sense to test 'none' explicitly as well?
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yes, probably. I'll add that
Co-authored-by: Lucas Garron <lgarron@chromium.org>
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All PRs:
Adding a new CSP directive
This PR adds support for the TrustedTypes CSP directives,
require-trusted-types-forand 'trusted-types'.Is the directive supported by any user agent? If so, which?
TrustedTypes are available in Chrome 83, Edge 83 and a polyfill exists for browsers that don't currently support.
What does it do?
require-trusted-types-fordisallows using strings with DOM XSS injection sink functions (functions like Document.write, Element.InnerHtml), and requires matching types created by Trusted Type policies.What are the valid values for the directive
require-trusted-types-foronly allowsscript.trusted-typesallows a list of strings, including one'allow-duplicates'which allows multiples of the same named policy to be created.