Tidy up Event listener when unmounting #1178
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Description of proposed changes
What is the goal of this pull request? What does this pull request change?
we need to tidy up when unmounting
Related issue(s)
Fixes #
Related to # 1115
Testing
What steps should be taken to test the changes you've proposed?
monitor.js responds to browser window resizing? So a hasty test would be to resize the window and check that every displayed element still works. Also, watch the memory usage and browser console.
I also ran the code through Deepscan. It was previously flagging an error here, but no longer.
If you added or changed behavior in the codebase, did you update the tests, or do you need help with this?
Yes, I would like help with tests!
Please review the code, I am new to lodash throttle cancel. @dos077 @jameshadfield
If you are not confident in this code then we need to shelve it until we understand it better.
Thank you for contributing to Nextstrain!