Make a deep copy when cloning a policy container #6671
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annevk
reviewed
May 11, 2021
annevk
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May 11, 2021
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I realized that https://infra.spec.whatwg.org/#list-clone creates a shallow copy of the list, hence the current algorithm for cloning a policy container just clones references to the policies in the other CSP list. Since a CSP policy is immutable, this is not a problem in principle (at least at the moment). Nevertheless, I believe it is better to create a deep copy here.
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