Uncaught TypeError: Cannot read property 'undefined' of undefined about chaplin

[paulmillr]

@goshakkk

[goshacmd]

@ktktok is there a particular page in ost.io that it consistently happens on, or any other navigation flow to that consistently reproduces the issue?

[ktktok]

I found STR:
Open http://ost.io/@brunch
Click on "brunch" for example
Click on browser "back" and "forward" buttons

[goshacmd]

Hm. Couldn't get that to produce anything in both Safari and Chrome

[ktktok]

http://screencast.com/t/fdaBhLR6Z

[goshacmd]

@ktktok I see, the key here seems to be clicking back/forward fast enough before any content on these pages is loaded. Thanks, I was able to reproduce that and will be looking into it

[ktktok]

Thanks!

[goshacmd]

That was happening because this._byId on collection view was deleted during dispose, but some calls to get happened even after that. It's safer to reset _byId to an empty object so that it doesn't raise an error. #890 should fix that.