fix bug: removeListener sometimes not working #138
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
removeListener not working in some scenior:
If the element or its parent has already been removed and appended to the DOM again
then Object.onload is been called again, and onElementDetectable will be called again
in some scenarios: users want to removeListener before element been removed
but when the element been appended to the DOM again, if onElementDetectable is called
then addListener function will be called again