I have tableau dashboards embedded inside SharePoint 2013 as an iFrame in a visual web part.
The dashboards and especially the filters (radio button and checkbox images) are loaded without issues and consistently in Google chrome.
However, in IE 11 we see sporadic issues where the (/img/radio_button_empty_disabled.svg and /img/checkbox_empty_hover.svg) don't load when a page containing the embedded dashboards is loaded.
I have already included the setting in the page to load the page always as IE compatibility as 'Edge' mode.
Here are the specifics:
SharePoint Version- SharePoint 2013
Tableau Version- Tableau Server 2018.2
IE Version- Internet Explorer 11
Below image show the images loaded correctly on the Tableau server interface:
Below image shows that the images not loading successfully on embedded page:
If a case has not been open with the Tableau Support please do so to have them help investigate the issuse.
Please update the post with the resolution.