Created attachment 463037 [details] web-platform-test results There are a number of WPT failures relating to the DOMInterface object not being exposed to ShadowRealms. I've already implemented a fix and will submit in a moment
Pull request: https://github.com/WebKit/WebKit/pull/5449
s/DOMInterface/DOMException/, derp
<rdar://problem/101506572>
*** Bug 265568 has been marked as a duplicate of this bug. ***