Nice solution, thanks.
BTW, very much related is the question whether an add-on is in the overflow menu. (Do you mean that with “in menu as iframe”?)
Because if you use some page in your add-on in an iframe, you likely know this. 
Nice solution, thanks.
BTW, very much related is the question whether an add-on is in the overflow menu. (Do you mean that with “in menu as iframe”?)
Because if you use some page in your add-on in an iframe, you likely know this.