Steps to reproduce:
- On enwiki betalabs perform a search (add &quickViewEnableMobile=1 to the url), e.g. search term: galaxy
- Click on the arrow to open search preview - the Console will display the following error:
TypeError: this.$el.querySelectorAll is not a function. (In 'this.$el.querySelectorAll('a, button, input, textarea, select, details, [tabindex]:not([tabindex="-1"])')', 'this.$el.querySelectorAll' is undefined)