I like to open links from a sidebar inside a normal tab. This works in general but I am not able to open the tab content in IE mode of edge browser.
If I click a link in the sidebar:
- the tab content shall be loaded in IE mode (because we use an old intranet application),
- the tab content is always loaded in edge mode,
- it is not possible to change the mode of the tab (no action, if clicked the menu item or icon),
- it has no effect, if the address is in the edge property list for IE mode pages,
- if the same page load direct in a new tab (from address bar, not from sidebar) anything works as expected.
Do there exist any API property, call etc. / manifest property to activate the IE mode from the add-on js code? Do there exist any other solution to change the mode?
From the Supported APIs for Microsoft Edge extensions, there is no API to activate the IE mode from extension. If you want a link to be opened in IE mode, you could Configure IE mode Policies. Based on my research, there is no option to load a page in IE mode inside the sidebar. You need to select "open link in a new tab" and load it in IE mode.