mathiasbynens

List of features that are supported by Opera 12 but not by Opera 15 due to the switch to Blink/Chromium:

• xhr.responseType = 'json' fixed as of August 19, 2013
• Link HTTP header
• Link HTTP header for stylesheets specifically
• Pressing Enter when an element with tabindex has focus should trigger a click
• Fragment identifiers in data: URIs should be handled correctly
• CSS gradients with transparency
• Accurate SVG rendering
• [`` where foo.svg is an SVG file that contains text looks terrible](https://code.google.com/p/chromium/issues/detail?id=33