Browser crashes on iPad (Safari and Chrome)

I am observing periodic / occasional browser crashes on the iPad when running Vaadin applications on Safari and Chrome browsers. These applications work perfectly on Safari and Chrome on the desktop (MacOS and Windows)
A very easy way to reproduce the crash is to use the browser zoom in / out (pinch out / in), and in 5 out of 10 cases, I observe the crash in < 15 sec, if I repeatedly use zoom in / out (pinch out / in). The browser crash invariably happens on zoom out (pinch in). I have tried this with multiple Vaadin applications, even sample applications.
I have been sending the Chrome crash log from ‘General > About > Diagnostics & Usage > Diagnostic & Usage Data’ to ‘’, but have not heard anything from them.

Have others faced similar issues, and if so what is the best workaround to prevent the occurance of these crashes?