[Webkit-unassigned] [Bug 255467] New: isASCIISpace vs isHTMLSpace

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255467

            Bug ID: 255467
           Summary: isASCIISpace vs isHTMLSpace
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: annevk at annevk.nl
                CC: cdumez at apple.com, darin at apple.com

In WebKit isASCIISpace includes U+000B, which is almost always wrong for web platform purposes. In fact, I'm not sure where U+000B is considered whitespace in the web platform. Pretty much everything I'm familiar with uses https://infra.spec.whatwg.org/#ascii-whitespace or a subset thereof (e.g., HTTP uses a subset).

Yet given isASCIISpace is a rather attractive name we use it in a number of places that likely want isHTMLSpace instead. E.g., it appears our CSP code does this wrong.

Curious if people could give the historical context here and whether we should maybe consider deprecating isASCIISpace.

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