Error in IE11 Object.getOwnPropertyNames: argument is not an Object

[smohadjer]

I have a page with these two scripts:

<script src="resources/js/vendor/webcomponents-bundle.js"></script>
<script src="resources/js/vendor/handlebars.runtime.js"></script>

When I open the page in IE11, I see this error in console:

SCRIPT5007: Object.getOwnPropertyNames: argument is not an Object
webcomponents-bundle.js (77,482)

If I do not load handlebars.runtime.js there will be no error, but I need handlebars. Any idea why webcomponents-bundle.js throws an error? The code of this script is compressed which make debugging difficult.

[smohadjer]

Also in IE11 the global Handlebars variable is undefined on pages that load webcomponents-bundle.js. The webcomponets-bundle.js stops execution of handlebars.runtime.js (version 4.7.6) for some reason.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically closed after being marked stale. If you're still facing this problem with the above solution, please comment and we'll reopen!