Steps to reproduce:

1. create a simple Map with one Host
2. create a simple Dashboard with this Map included
3. set refresh interval to 30s for testing purpose
4. open Debugger F12 -> Network

Result:

• Screenshot 'zbx_map_only' shows the little data loaded within the Map view. This is the expected behavior
• Screenshot 'zbx_map_as_widget' shows that the whole page including pictures get loaded (even 2x for whatever reason)

As you can see on the screenshot and also if you follow steps 1-4 is, that within the Map view, only application/json data is loaded for refreshing the map, whereas when loaded as widget, every content of the map is loaded every 30s, images - for whatever reason - even 2x.

Though i have a lot of information coming with systems on my map (like temperature, bandwidth) next to each system, i never saw the complete browser screen reloading before 7.0.3. Right now it feels like you're refreshing one big image compared to only few parts of text.

Expected:
Like with the normal Map view, only text data should be refreshed and not the whole page when you use the Map as widget.