Casper Signer | 'Signature request' screen | Clicking on 'Home' icon during active signature request makes window flicker

[karatnyk]

Steps to reproduce:

1. Initiate a token transaction on cspr.live website
2. On 'Sign' step click on 'Sign with Casper Signer' button
3. Observe that 'Signature Request' window appeared
4. Click on 'Home' icon on 'Signature Request' window

Expected result: 'Home' icon should do nothing until 'Signature Request' is resolved
Actual result: Clicking on 'Home' icon during active signature request makes window flicker