Steps to reproduce the issue

Open any form containing a repeatable subform with IE.

Expected result

Repeatable subform can add or remove rows on demand. Doesn't do so automatically.

Actual result

A row will always be added automatically because IE does not support the <template> tag and those contents will be treated like regular html.

System information (as much as possible)

IE. This happens with IE because no version of it supports <template>

Additional comments