What is hidden in the "Other" in column Initiator?

Caught the Facebook bug, but as I can not understand. Aborts the current request browser request to Facebook. Graphically it looks like this:

or so


The problem with (canceled) and the following query which is called Other.

Someone already seen this?
October 3rd 19 at 03:55
1 answer
October 3rd 19 at 03:57
Chrome is so uninformative shows that the query runs from an iframe.

https://code.google.com/p/chromium/issues/detail?id=127600
I saw this bug, but how the iframe can be added to other people's pages? - rod.Schult commented on October 3rd 19 at 04:00
Why someone else? I think Facebook has the right to use an iframe on their pages. :)
And what's a bug of Facebook, then? If you acccess any more or less complex page, you can see a similar picture.
For the sake of interest opened tape, G+, chrome made 250 requests and 20 with an error. 1 was also canceled, according to the script timeout. - Vernon.Hodkiewicz commented on October 3rd 19 at 04:03
See the screenshot:
1. The user redirected on post dialogue
2. The user accepts the request, there is a redirect on 1
3. As polzovatel logged in there is a redirect to us.
4. Further there are two redirect from our site

The problem is that steps 3 or 4 (our website) can be interrupted as in the screenshot. That is, after the user is gone from Facebook.
This happens only if the user is not logged in Facebook. - rod.Schult commented on October 3rd 19 at 04:06

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