Middle Mouse for New Tab

The desired behavior is for links in Bing's results to open in the current tab with left click, but in a new tab with middle mouse.

This doesn't seem to be achieved by the Settings>More>Search>Results>"Open links from search results in a new tab or window" since this setting changes both behaviors to one or the other.

Until recently the behavior was as desired. Was the feature removed or am I missing some way to configure it?