Created attachment 467355 [details] Animation comparison: blink vs webkit By "filter box" I mean the box of the svg filter (using x/y/width/height attributes) And by "content box" I mean the box of the element with the filter applied via CSS. Here's an example where I made the filter box around 2x in scale: https://svelte.dev/repl/17a5660515154699b0c65ae3d9383556?version=4.2.0 I suspect this will happen with any SMIL animation in a filter where the filter size exceeds the size of the content, but I haven't confirmed that so that should be tested if anyone is interested.
<rdar://problem/114542874>