Uncaught TypeError: Cannot convert object to primitive value(zone-evergreen.js:171)

Question

In Angular 9 (using Bootstrap 4 and Jquery 3.5.1). when clicking on bootstrap collapse button, I am getting an error on my browser console instead

Answer 1

This issue seems to be related to jQuery 3.5.0. It is a breaking change that affects many plugins. Temporarily reverting to a previous version of jQuery (like 3.4.1) fixed the issue for me.

Source: jQuery Issue #4665

Update:

jQuery 3.5.1 reverts the breaking change and should be safe to use.

Announcement: jQuery 3.5.1 Released: Fixing a Regression