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A place to report bugs on websites.
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flightradar24.com - High CPU usage slowing down the browser #129687

Open webcompat-bot opened 11 months ago

webcompat-bot commented 11 months ago

URL: http://flightradar24.com

Browser / Version: Firefox 119.0 Operating System: Windows 10 Tested Another Browser: Yes Edge

Problem type: Something else Description: this site is slowing down Firefox, not functioning Steps to Reproduce: working fine on Edge, no longer on firefox

Browser Configuration
  • None

From webcompat.com with ❤️

sv-calin commented 11 months ago

Thank you for reporting this issue, I was able to reproduce it. This usually happens when trying to check the routes and clicking on one of the airplanes. Sometimes it reproduces by clicking on the airplanes directly without any prior steps.

Steps to reproduce:

  1. Go to http://flightradar24.com
  2. Dismiss cookie banner.
  3. Go to "Filters".
  4. Click on "Add new filters" and "Route".
  5. Add 2 airports (eg. JFK and CDG) and click "Continue".
  6. Click "Save" and name the filter however you want.
  7. Click on an airplane.
  8. Observe the behaviour.

https://github.com/webcompat/web-bugs/assets/107036654/d42f4385-9c37-44a6-aae1-fb2e3c932ac2

image

For some reason the firefox profiler is stuck uploading and I'm unable to share the link, but there is high CPU usage when the issue occurs:

image

Tested on: • Browser / Version: Firefox Nightly 121.0a1 (2023-11-12) / Firefox Release 119 / Chrome 119.0.6045.124 • Operating System: Windows 10

Notes:

  1. Reproducible on both Firefox Release and Nightly (ETP doesn't seem to affect this behaviour)
  2. Not reproducible on Chrome

Moving to Needsdiagnosis.

[qa_46/2023]