Yup, the "test for feature availability" attitude doesn't properly account for features which are available yet buggy. I recently ran into an issue where a med

Yup, the "test for feature availability" attitude doesn't properly account for features which are available yet buggy. I recently ran into an issue where a media-heavy blog post of mine would sporadically crash iOS Safari. I ended up narrowing it down to my use of ImageBitmap to accelerate rendering images into 2D canvases on the page. My fix ended up being to modify my ImageBitmap feature check to pretend it wasn't supported on Safari.