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Site Performance Request: Loading Indicators When Navigating Between Pages

Feature Request|We are collecting votes for this issue
When your visitors move from one page to another on your site, there is no visual indication that the new page is loading until it actually appears. The time it takes for the new page to load depends on its content. 
Currently, it is not possible to add a loading indicator to signify that the page is still loading. 
We are always working to update and improve our products, and your feedback is hugely appreciated.