Device: Motorola Nexus 6 (Android 7.0) Build: Nightly 57.0a1 (2017-08-08); Steps to reproduce: 1. Make sure the "Progressive web apps" toggle is ON, in Settings>Advanced menu. 2. Open a web app and long tap on some text to select it. 3. Verify if the text selection toolbar is displayed and working. Expected result: Text selection toolbar is displayed and working. Actual result: text selection toolbar is not displayed.
This is fixed per bug 1367079