I'm working on a toy flash card website and am linking to pleco via the plecoapi scheme. I'm not sure if the behavior I'm seeking is currently supported. After clicking the pleco link to visit the app I would like to be able to press the back button once and return to my site. Currently pressing the back button 3 times is required. Once to return to the search page activity, once to close the keyboard dialog, and once to return back to my site. From reading the release notes http://android.pleco.com/manual/310/vershist.html I noticed that there's a x-success and x-source field, but I haven't been able to find much documentation or get it to work in the desired manner. Any tips or information is appreciated. If you want a link to the site, I can provide it as well if that helps in any way.