Something going deeply wrong with some tabs post-sleep

jducoeur

I don't have a clear recipe for this one yet, but it's driving me kind of crazy.

Context: I have a named window designated "Work". It has many tabs (₅₀), of which the majority are various paths under https://us-east-1.console.aws.amazon.com/ (I suspect this is relevant, since my window that isn't all about one domain has not been having these problems. But that may be a red herring.)

Things are mostly okay during normal operations, although I've been noticing tabs getting behind the times (and sometimes just plain confused) about a given tab's title, which sometimes makes it challenging to navigate.

But when I go away for a while, things go completely to hell. (It is possible that this may relate to all of them noticing that my session has timed out, although they don't change URL when that happens.)

When I come back, I'll click on a tab; it picks up the new session and reloads. But when I click on the next tab, it often hangs for a very long time. (Maybe indefinitely?) This seems to be part of the recipe: far as I can tell, it only happens when I try to "revive" multiple tabs within a few seconds of each other.

It took me quite a while to even grok what was happening, since it sort of looks like tabs duplicating, but what's actually happening is that some tabs become completely unresponsive: the tab's site icon and title are correct, but absolutely nothing happens when I click on it -- it stays showing the tab I came from.

The behavior is inconsistent (which is why I haven't been able to pin down a recipe yet), but it looks like once a tab gets into this state it's just stuck: it never loads properly, doesn't show a context menu on the tab, and can't even be closed with the "x".

While I can't show the problem starting (I never know which tabs will fail), the attached video shows the problem once it has started. The "Target groups" tab near the top is dead -- hovering over it doesn't show a thumbnail, clicking on it does nothing, right-clicking does nothing, and clicking on the "x" does nothing.

I think this issue is new -- at least, I've only been noticing it this week. (But I had been away from work for a while, so it could have started any time in the past month and I might not have noticed.)

Tabs should reliably come back to life after sleep.

Version 0.99.133-beta (WebKit 621.1.2.111.4)

Sequoia (15)

jducoeur

Ah, here's a detail from an experiment I just tried: if I switch the physical window to a different logical window (eg, I click on the icon for my "Everyday" window at the top of the tab stack) and back again, the "dead" tab goes away: it simply vanishes entirely from my tab list.