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bug: "optsTest" event listener memory leak #30539
Description
Prerequisites
- I have read the Contributing Guidelines.
- I agree to follow the Code of Conduct.
- I have searched for existing issues that already report this problem, without success.
Ionic Framework Version
v8.x
Current Behavior
There is a memory leak in the following file: core/src/utils/gesture/listener.ts
An "optsTest" event listener is added in a try/catch, and when successful, this event listener is never removed.
Expected Behavior
Passive event listeners have excellent browser support. My suggestion is to remove this check altogether. Otherwise, just remove the event listener after adding it.
Reacted by Alexander Harding
Activity
ShaneK commentedon Aug 18, 2026
Thanks for reporting this issue! The fix for this has been merged into main and will go out with our next deploy!
fix(gesture): remove leaked optsTest listener from passive support ch…
ionitron-bot commentedon Sep 17, 2026
Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.
fix(gesture): remove leaked optsTest listener from passive support ch…