Does this ONLY happen in Beta? Did it happen in the stable 4.2.2. version as well? Does it happen in Beta 3?
<< It’s happening with all previous versions of WordPress, not only with beta versions.
hey @dominik Schilling, you got my points.
I am resizing text area with mouse as stretching text area as big textarea. So, I can write anything and can check what I done with textarea inputs
This coming with any browsers, not only issue with particular browsers.
@ipstenu .. I remove/uninstall all plugins as per you introduced but still facing issue – http://prntscr.com/7oc12u
I think this code is added for new customizer (menu) because I am getting same alert when I am trying to exit with customizer and I already changed some menu reoredring in customizer.