PATCH UPDATE (Only needed for apps using TextureActive)
ZIM 015-020 have been patched to update TextureActive so it does not conflict with the new DOM Canvas content property. We renamed our dynamic property to contentTA.
If you are using the ZIM CDN then you are good. Otherwise, either update your version of ZIM or add this at the top of your app:
<script>
// Hotfix for legacy ZIM TextureActive in Chromium/Edge
delete HTMLCanvasElement.prototype.content;
</script>