Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/browser

SDK Version

dont know

Framework Version

No response

Link to Sentry event

No response

Reproduction Example/SDK Setup

No response

Steps to Reproduce

1. Go to https://syntax.fm/
2. Click on shows
3. Click on videos
4. Repeat steps 2-3 several times
5. Notice the number of sentry related functions seems to grow each time

Expected Result

The number of sentry related functions stays constant

Actual Result

The number of sentry related functions seems to grow each time

Additional Context

Possible solution: add {once: true} to event listener options to automatically clean up the listener:

// browserTracingIntegration.ts

// Enable auto finish of the pageload span if users are not explicitly ending it
if (isPageloadSpan && !enableReportPageLoaded && optionalWindowDocument) {
  optionalWindowDocument.addEventListener('readystatechange', () => {
    emitFinish();
  }, {once: true });  // clean up listener automatically

  emitFinish();
}

Priority

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