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Jason Frantz answered on October 22, 2023 Popularity 1/10 Helpfulness 1/10

answer http

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serialized-source-list = ( source-expression *( required-ascii-whitespace source-expression ) ) / "'none'"
source-expression      = scheme-source / host-source / keyword-source
                         / nonce-source / hash-source

; Schemes: "https:" / "custom-scheme:" / "another.custom-scheme:"
scheme-source = scheme-part ":"

; Hosts: "example.com" / "*.example.com" / "https://*.example.com:12/path/to/file.js"
host-source = [ scheme-part "://" ] host-part [ ":" port-part ] [ path-part ]
scheme-part = scheme
              ; scheme is defined in section 3.1 of RFC 3986.
host-part   = "*" / [ "*." ] 1*host-char *( "." 1*host-char )
host-char   = ALPHA / DIGIT / "-"
port-part   = 1*DIGIT / "*"
path-part   = path-absolute (but not including ";" or ",")
              ; path-absolute is defined in section 3.3 of RFC 3986.

; Keywords:
keyword-source = "'self'" / "'unsafe-inline'" / "'unsafe-eval'"
                 / "'strict-dynamic'" / "'unsafe-hashes'" /
                 / "'report-sample'" / "'unsafe-allow-redirects'"
                 / "'wasm-unsafe-eval'"

ISSUE: Bikeshed unsafe-allow-redirects.

; Nonces: 'nonce-[nonce goes here]'
nonce-source  = "'nonce-" base64-value "'"
base64-value  = 1*( ALPHA / DIGIT / "+" / "/" / "-" / "_" )*2( "=" )

; Digests: 'sha256-[digest goes here]'
hash-source    = "'" hash-algorithm "-" base64-value "'"
hash-algorithm = "sha256" / "sha384" / "sha512"

Popularity 1/10 Helpfulness 1/10 Language html

Source: www.w3.org

Tags: html http

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Contributed on Oct 22 2023

Jason Frantz

0 Answers Avg Quality 2/10

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