[Webkit-unassigned] [Bug 150258] New: SVG feBlend With in2 from a resized feImage result linking to an embedded SVG document not specifying viewBox rendered wrong

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=150258

            Bug ID: 150258
           Summary: SVG feBlend With in2 from a resized feImage result
                    linking to an embedded SVG document not specifying
                    viewBox rendered wrong
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: SVG
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: agomez at igalia.com
                CC: zimmermann at kde.org

Created attachment 263334
  --> https://bugs.webkit.org/attachment.cgi?id=263334&action=review
Screenshot of the issue.

Reproduced with WebKitGTK+ 2.10.0 and with Safari 7.1 on OS X Mavericks.

Steps to reproduce the problem:
===============================

Open the URL:
https://rawgit.com/tanty/design-hodgepodge/master/svg/filter/feBlend-feImage-resized-tests.html


What is the expected behavior?
==============================

All the SVGs are shown as the included PNG as reference


What went wrong?
================

The feImage in the SVG documents explicits values for x=0, y=0, width=172.8%, height=172.8%, which is the same value than the embedded document's height.

Only the SVG in which the embedded SVG document specifies a "viewBox" with values "0 0 <SVGWidth> <SVGHeight>" which, AFAIK, are the default values for the viewBox, is rendered correctly.

The SVG in which the viewBox is not provided for the embedded SVG document is not displayed properly since it is not scaled.

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