So the issue here is that the page content is not refreshed until four seconds after the address box URL changes and the alert dialog box is shown, is that right?

I think this issue is what is described in passing in https://bugs.chromium.org/p/chromium/issues/detail?id=702945#c8

It's true that it redirects to the landing page after 4 or 5 seconds

But it does not happen in Mozilla Firefox or Google Chrome canary

Not particularly serious but a little confusing

Comment 2: Yes, this is a duplicate of  issue 702945 .

A few other observations:

1) The fact that it blanks after 4 seconds is related to kenrb's paint timer which resets the last painted image if the committed page hasn't shown anything yet.  This is a compromise between showing as few white flashes as possible when navigating and avoiding a spoof where an old page's content shows under an unresponsive new URL.

2) This does repro on Canary (Windows, 61.0.3122.0), but only if the TopDocumentIsolation field trial is disabled.  That's currently on for 50% of users.  (I imagine there might be some out-of-process iframe bug related to the hidden Google Docs Drawing iframe on the repro page.

3) As written, the repro requires you to be signed into Google.

I've attached the repro in case the original URL stops working at some point.

Deleted: spoof-content-domain.html 634 bytes

spoof-content-domain.html 634 bytes View Download

@creis Thanks for the clarifications.

 Issue 754235  has been merged into this issue.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot