The website switches to the blank page if I start "Fund this project" process, confirm transaction and switch to another tab for a while (bug)

[rustam-RI]

Testing Environment:

Windows 10, Google Chrome 73.0.3683.86 (64bit), 15.6", 1920х1080

Precondition: User has 2 AGI on Escrow Balance

Steps to reproduce:

1. Navigate to Home Page of RFAI
2. Open the details of some request from the list of active requests
3. Press "Fund this project"
4. Type 1 AGI in the "Funding amount" field
5. Press "Fund project"
6. Confirm the transaction in the opened MetaMask window
7. Switch to another tab
8. Wait for a few seconds
9. Return to the tab with funding process

EXPECTED RESULT:

Solution has been successfully funded

ACTUAL RESULT:

User can see only a blank page (even the refresh of the page doesn't help, after it the page just get stucked with infinite loading)

Please see the video below