[Webkit-unassigned] [Bug 126591] New: vw units don't look at the right viewport in print media

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=126591

           Summary: vw units don't look at the right viewport in print
                    media
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Major
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: brkemper at mac.com


VW units are supposed to be based on the width of the initial containing block (which is divided into 100 VW units). But when printed, the ICB is the page area (the printable area of the piece of paper). Webkit seems to be using the width of the window on the monitor instead as its reference for print VWs. What's more, it does this even when the page is inside an iframe: it uses the width of the outer window instead of the width of the iframe. 1VW should instead be 1/100 of the print area of the page.

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