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The code for an encoder or decoder must be able to be compact in order to support systems with very limited memory, processor power, and instruction sets.
The "break" stop code is encoded with major type 7 and additional information value 31 (0b111_11111). It is not itself a data item: it is just a syntactic feature to close an indefinite-length item.
The serialization of this tag's head is 0xd9d9f7, which does not appear to be in use as a distinguishing mark for any frequently used file types. In particular, 0xd9d9f7 is not a valid start of a Unicode text in any Unicode encoding if it is followed by a valid CBOR data item.
A Document may deliver a policy via one or more HTML meta elements whose http-equiv attributes are an ASCII case-insensitive match for the string "Content-Security-Policy". For example:\
When a directive that impacts script-like destinations has a report-sha256, report-sha384 or report-sha512 value, and a request with a script-like destination is fetched, a csp hash report will be generated and sent out to a reporting endpoint associated with the policy.
Note: If a user agent implements non-standard sinks like setImmediate() or execScript(), they SHOULD also be gated on "unsafe-eval". Note: Since "unsafe-eval" acts as a global page flag, script-src-attr and script-src-elem are not used when performing this check, instead script-src (or it’s fallback directive) is always used.
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</p>
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<pclass="trans-note">【†
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<pclass="trans-note">【~FN
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~security文脈における~sink( “槽” )とは、
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~data~flowにおいて最初に~app層に渡される,
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外部からの信用できない~data~sourceを意味する
@@ -9705,9 +9706,9 @@ <h5 title="Is base allowed for document?">6.3.1.1. 文書に対する基底は
【† 原文には “`fallback base URL^en (`~fallback基底~URL@~HTMLurl#fallback-base-url$)” と記されているが、(自己-生成元が導入される前の)古い記述の更新漏れと見受けられる。】
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【~FN 原文には “`fallback base URL^en (`~fallback基底~URL@~HTMLurl#fallback-base-url$)” と記されているが、(自己-生成元が導入される前の)古い記述の更新漏れと見受けられる。】
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Note: We compare against the fallback base URL in order to deal correctly with things like an iframe srcdoc Document which has been sandboxed into an opaque origin.
The violation reporting mechanism in this document has been designed to mitigate the risk that a malicious web site could use violation reports to probe the behavior of other servers. For example, consider a malicious web site that allows https://example.com as a source of images. If the malicious site attempts to load https://example.com/login as an image, and the example.com server redirects to an identity provider (e.g. identityprovider.example.net), CSP will block the request. If violation reports contained the full blocked URL, the violation report might contain sensitive information contained in the redirected URL, such as session identifiers or purported identities. For this reason, the user agent includes only the URL of the original request, not the redirect target.
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