commit 7ffe3230d2b6020394803784c140765e7c8e4b76 Author: Kathy Brade brade@pearlcrescent.com Date: Tue May 10 16:57:17 2016 -0400

fixup! Bug 12827: Create preference to disable SVG.

When SVGs are disabled, do no load SVG images within the Page Info Media tab (bug 18770). --- image/ImageFactory.cpp | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/image/ImageFactory.cpp b/image/ImageFactory.cpp index 9298d74..ec20c78 100644 --- a/image/ImageFactory.cpp +++ b/image/ImageFactory.cpp @@ -98,8 +98,10 @@ ImageFactory::CreateImage(nsIRequest* aRequest, nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest)); isBlocked = !NS_SVGEnabledForChannel(channel); if (!isBlocked && channel && !NS_SVGEnabledForChannel(nullptr)) { - // Special case for favicons: block this image load if SVGs are - // disallowed from content and if this image load originated from the + // This SVG was not blocked based on the channel but SVGs are + // disallowed from content. Check some special cases. + + // For favicons, block this SVG image load if it originated from the // favicon xul:image node within a tab. nsCOMPtr<nsILoadInfo> loadInfo; nsresult rv = channel->GetLoadInfo(getter_AddRefs(loadInfo)); @@ -111,6 +113,17 @@ ImageFactory::CreateImage(nsIRequest* aRequest, nsAutoString anonid; elem->GetAttribute(NS_LITERAL_STRING("anonid"), anonid); isBlocked = anonid.EqualsLiteral("tab-icon-image"); + + if (!isBlocked) { + // For the Page Info "Media" tab, block this SVG image load if + // it originated from a node within a chrome document that has + // an id of "thepreviewimage". + if (nsContentUtils::IsChromeDoc(node->OwnerDoc())) { + nsAutoString loadingID; + elem->GetId(loadingID); + isBlocked = loadingID.EqualsLiteral("thepreviewimage"); + } + } } } }