window.Notification.permission for frame-remote gets 'denied' when setting is 'ask' rule

[Christywl]

======== TEMPLATE BUG FORM ========

NWJS Version : nwjs-sdk-v0.31.0
Operating System : Linux

Expected behavior

window.Notification.permission for frame-remote gets 'granted' when setting is 'ask' rule

Actual behavior

window.Notification.permission for frame-remote gets 'denied' when setting is 'ask' rule

perm-frame-remote : denied
Traceback (most recent call last):
  File "test.py", line 103, in <module>
    test_perm(driver, 'show-perm-frame-remote', 'perm-frame-remote', expected='default')
  File "test.py", line 16, in test_perm
    assert(expected in result)
AssertionError

How to reproduce

1. Download the tests: a791ce4
2. export CHROMDRIVER
3. python test.py