未使用ResizeObserver却触发ResizeObserver loop limit exceeded错误的技术咨询

Hey there, I’ve run into this exact issue a few times with Rollbar and ResizeObserver errors—let me break down what’s going on and how to fix it.

为什么会出现这个错误？ #

• First off, this error doesn’t have to come from your code or directly installed plugins. A lot of third-party scripts (like ad injectors, analytics tools, or social media embeds) quietly use ResizeObserver to track element size changes, and these scripts aren’t part of your project’s codebase.
• Browser extensions are another common culprit. Some extensions inject scripts into pages that include ResizeObserver usage, triggering this loop limit error without you realizing it.
• Also, this error is often benign. It’s a browser protection mechanism: when ResizeObserver callbacks fire too frequently and exceed the browser’s loop limit, it throws this error—but it rarely breaks page functionality. The only issue is that Rollbar picks it up as an uncaught error.
• Even though you checked Aurelia Resize, keep in mind: its dependency packages or other UI component libraries you’ve imported might indirectly use ResizeObserver, even if you don’t see it in your top-level code.

解决办法 #

• Filter the error directly in Rollbar (quickest fix)：
  Go to your Rollbar project settings, find the "Error Filtering" or "Ignored Errors" section, and add a rule that matches error messages containing ResizeObserver loop limit exceeded. Set it to ignore these errors, and you’ll stop getting alerts for them.
• Troubleshoot third-party scripts and extensions：
  • Use your browser’s DevTools "Sources" panel to search globally for ResizeObserver, then check the error’s call stack to find which script is triggering it. If it’s an ad or analytics script, you can reach out to the provider or switch to an alternative tool.
  • Test your app with all browser extensions disabled. If the error goes away, re-enable extensions one by one to find the problematic one.
• Catch and suppress the error globally：
  If you don’t want to rely solely on Rollbar’s filtering, add global error handling to catch this error and prevent it from being reported:

  // Use Rollbar's beforeSend hook to filter precisely
  Rollbar.configure({
    beforeSend: (payload) => {
      const exception = payload?.body?.trace?.exception;
      if (exception?.message.includes('ResizeObserver loop limit exceeded')) {
        return false; // Block this error from being reported
      }
      return payload;
    }
  });
  

  Or use native error listening:

  window.addEventListener('error', (e) => {
    if (e.message.includes('ResizeObserver loop limit exceeded')) {
      e.preventDefault();
      e.stopPropagation();
    }
  });
  

内容的提问来源于stack exchange，提问作者IOIIOOIO