WebView is Not Auto-Completing the Tag Names

The main reason why the tag names do not auto-complete is data domain where the tag is located is not in the Domains Visible to WebView. To check this, open the DataHub Properties.  Go to the WebView section and you can see which domains are enabled to be visible to WebView.

Another reason the auto-complete functionality may not be working has to do with the size of the result set that is returned. If the number of tags that match the pattern is more than 500 we do not return anything in the auto-complete. You need to choose a substring that is unique enough to match fewer than 500 tags.