Success with loading spinner?

[franktisellano]

Hey folks,

I absolutely love this library. It has saved me an insane amount of time. My web app can generate a lot of images, so it can take awhile for html2canvas to run — on the order of 3-6 seconds in some cases, which can feel like an eternity.

I've tried to implement loading spinners, but CSS animations are janky (or non-functional) while html2canvas is doing its thing, presumably because those animations run on the same thread as html2canvas. I've considered doing a non-animated Loading state, which is probably what I'll fall back to if I'm unsuccessful with this animation, but: has anyone had success implementing a loading spinner or in substantially speeding up rendering (e.g., through parallelization)? If so, how'd you do it? Would love to learn from you.

F