These tests: media/event-attributes.html media/media-controls-invalid-url.html media/video-played-reset.html spew stuff like: Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextScaleCTM: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextScaleCTM: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextTranslateCTM: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextAddPath: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: clip: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextDrawLinearGradient: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextTranslateCTM: invalid context 0x0 Aug 5 09:42:44 s-bot-209.apple.com WebProcess[75176] <Error>: CGContextDrawLayerInRect: invalid context 0x0
<rdar://problem/14725836>
Fixed WKSI landed in https://trac.webkit.org/r154015