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Document CORS safelist exceptions #621

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Nov 21, 2017
Merged

Document CORS safelist exceptions #621

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25fde4f
Document CORS safelist exceptions
estark37 Oct 26, 2017
fb97ea3
Move to its own normative section
estark37 Oct 27, 2017
84322db
address annevk's comments
estark37 Nov 3, 2017
f695118
add references
estark37 Nov 18, 2017
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reformat as a list
estark37 Nov 20, 2017
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22 changes: 20 additions & 2 deletions fetch.bs
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Expand Up @@ -97,6 +97,22 @@ url: https://tools.ietf.org/html/rfc7234#section-1.2.1;text:delta-seconds;type:d
"publisher": "US-CERT",
"href": "https://www.kb.cert.org/vuls/id/150227",
"title": "HTTP proxy default configurations allow arbitrary TCP connections."
},
"REPORTING": {
"authors": ["Ilya Grigorik", "Mike West"],
"href": "https://wicg.github.io/reporting/",
"title": "Reporting API"
},
"EXPECT-CT": {
"authors": [
"Emily Stark"
],
"href": "https://tools.ietf.org/html/draft-ietf-httpbis-expect-ct-02",
"publisher": "IETF",
"title": "Expect-CT Extension for HTTP"
},
"OCSP": {
"aliasOf": "RFC2560"
}
}
</pre>
Expand Down Expand Up @@ -2236,8 +2252,10 @@ Access-Control-Allow-Credentials: true</pre>
triggered by web content but whose headers and bodies can be only minimally controlled by the web
content. Therefore, servers should expect cross-origin web content to be allowed to trigger
non-preflighted requests with the following non-safelisted `<code>Content-Type</code>` header
values: `<code>application/csp-report</code>`, `<code>application/report</code>`,
`<code>application/expect-ct-report+json</code>`, and `<code>application/ocsp-request</code>`.
values:
`<code>application/csp-report</code>` [[CSP]], `<code>application/report</code>` [[REPORTING]],
`<code>application/expect-ct-report+json</code>` [[EXPECT-CT]],
`<code>application/xss-auditor-report</code>`, and `<code>application/ocsp-request</code>` [[OCSP]].

<p>Specifications should avoid introducing new exceptions and should only do so with careful
consideration for the security consequences. New exceptions can be proposed by
Expand Down