Steps to reproduce:
- Add a few portlets to a page (iframe, loan calculator, etc...ones that are small)
- Add Web Content Display to a page
- Remove one of the first portlets from the page
- Click to remove Web Content Display
- When the dialog pops up, there will be a checkbox saying "Prevent this page from creating addition dialogs" > flag that and click OK
- Remove another portlet from the page
The portlet will now be removed without a message, and the page won't suddenly refresh itself.
There is no message; however, the page refreshes itself (after portlet removal never refreshed a page up to this point). See attached gif.