When building a referenced SVGFilter, the color-interpolation property of the effect element is calculated. If the effect element does not have a renderer, we fallback to the computed style property value. If the filter is inside an <iframe> which has media queries, a Document::updateLayout() will be forced. Building the SVGFilter should not invoke an updateLayout() since this may not be safe and out of order.
Created attachment 448492 [details]
Created attachment 448499 [details]
Committed r287710 (245795@main): <https://commits.webkit.org/245795@main>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 448499 [details].