Use ResizeObserver
polyfill, if necessary
#4012
Merged
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This shouldn't be necessary due to our browser support policy (see https://caniuse.com/mdn-api_resizeobserver), but we seem to have plenty of users that regularly run into this, due to Chart.js using the
ResizeObserver
API underneath.The polyfill is loaded async if we detect that
ResizeObserver
is not implemented natively in the browser.see https://github.com/juggle/resize-observer
Fixes #4011