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google chrome - ResizeObserver - loop limit exceeded

About two months ago we started using Rollbar to notify us of various errors in our Web App. Ever since then we have been getting the occasional error:

ResizeObserver loop limit exceeded

The thing that confuses me about this is that we are not using ResizeObserver and I have investigated the only plugin which I thought could possibly be the culprit, namely:

Aurelia Resize

But it doesn't appear to be using ResizeObserver either.

What is also confusing is that these error messages have been occuring since January but ResizeObserver support has only recently been added to Chrome 65.

The browser versions that have been giving us this error are:

  • Chrome: 63.0.3239 (ResizeObserver loop limit exceeded)
  • Chrome: 64.0.3282 (ResizeObserver loop limit exceeded)
  • Edge: 14.14393 (SecurityError)
  • Edge: 15.15063 (SecurityError)

So I was wondering if this could possibly be a browser bug? Or perhaps an error that actually has nothing to do with ResizeObserver?

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You can safely ignore this error.

One of the specification authors wrote in a comment to your question but it is not an answer and it is not clear in the comment that the answer is really the most important one in this thread, and the one that made me comfortable to ignore it in our Sentry logs.

?This error means that ResizeObserver was not able to deliver all observations within a single animation frame. It is benign (your site will not break). – Aleksandar Totic Apr 15 at 3:14

There are also some related issues to this in the specification repository.


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