[Webkit-unassigned] [Bug 215764] incorrect charset default for text/xml

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215764

--- Comment #4 from Alexey Proskuryakov <ap at webkit.org> ---
https://www.w3.org/TR/REC-xml/#charencoding defers to RFC 3023 for text/xml resources delivered over http, which says:

      Conformant with [RFC2046], if a text/xml entity is received with
      the charset parameter omitted, MIME processors and XML processors
      MUST use the default charset value of "us-ascii"[ASCII].  In cases
      where the XML MIME entity is transmitted via HTTP, the default
      charset value is still "us-ascii".  (Note: There is an
      inconsistency between this specification and HTTP/1.1, which uses
      ISO-8859-1[ISO8859] as the default for a historical reason.  Since
      XML is a new format, a new default should be chosen for better
      I18N.  US-ASCII was chosen, since it is the intersection of UTF-8
      and ISO-8859-1 and since it is already used by MIME.)

So it looks like other browser engines violate the spec in a different way. Us inheriting the default charset from the page is at least consistent with how other text/ subresources are handled.

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