When getting information about a tab that has been opened as a popup and the tab has not been opened as a tab, but as a popup, you do not get the
openerTabId property. It is just not present… (undefined)
Thus it is not easily possible to get the tab, which opened a popup from the popup’s tab.
You can reproduce this e.g. by clicking on the follow button here (to open in a new tab instead, do this with right-click or so) here:
So is this a bug or is this intended?
Here is the example data, for comparsion (I’ve only removed this big crazy