[Webkit-unassigned] [Bug 254158] httpHeaderField always returns string

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=254158

Chris Dumez <cdumez at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |cdumez at apple.com

--- Comment #2 from Chris Dumez <cdumez at apple.com> ---
String has a null state in WebKit.

This should be distinguishable already. `string.isNull()` -> header is missing. `string.isEmpty() && !string.isNull()` -> header is present but has no value.

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