I looked at https://www.wikidata.org/wiki/Q42 and refreshed the page several times. I noticed that sometimes properties like VIAF are linked to their counterpart on a external dataset and sometimes it is only the the raw text without link.
As aude pointed out it may be something with the gadget initialisation. I have, however, no knowledge about the internals, so I dump here a copy of the irc log - hope this helps:
2015-02-11 15:30:10 <aude> ebekebe: i think there is an issue with the way the gadget's javascript is initialized 2015-02-11 15:30:27 <aude> it works for me with debug=true, but see the issue otherwise 2015-02-11 15:42:09 <ebekebe_> aude: It works for me in Firefox and Safari too, so it seems to be a Chrome issue. 2015-02-11 15:43:24 <jzerebecki> ebekebe_: yes it's a bug. can't reproduce in firefox, but aude could in chrome. please file a bug. 2015-02-11 15:43:25 <ebekebe_> aude: https://www.wikidata.org/wiki/Special:Contributions/Aude craches my Chrome tab as well as https://www.wikidata.org/wiki/Q12152 (which is funny, because it is heart attack) 2015-02-11 15:44:32 <aude> ebekebe_: https://phabricator.wikimedia.org/T88478 2015-02-11 15:45:04 <aude> is the chrome bug 2015-02-11 15:45:52 <aude> looks like they at least have a tentative fix and hopefully release an update for chrome soon with it 2015-02-11 15:59:58 <ebekebe_> jzerebecki: I don't have a phabricator account yet and the email confirmation doesn't seem to work for me at the moment. I try to file the bug later. 2015-02-11 16:00:16 <Harmonia_Amanda> am I the only one who can't order items in a property? the order of the items can be significant... 2015-02-11 16:00:30 <sjoerddebruin> not possible atm 2015-02-11 16:00:34 <Harmonia_Amanda> this morning I could do it, and now I can't 2015-02-11 16:00:38 <sjoerddebruin> sorting was broken I think 2015-02-11 16:01:04 <Harmonia_Amanda> do you know when we could sort again? 2015-02-11 16:02:19 <sjoerddebruin> Nope. When it's fixed. 2015-02-11 16:02:44 <aude> ebekebe_: for the gadget, applying something like http://wikidata.beta.wmflabs.org/w/index.php?title=MediaWiki%3AGadget-AuthorityControl.js&diff=81934&oldid=81926 2015-02-11 16:02:46 <sjoerddebruin> https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team#Why_are_the_triangles_vanished 2015-02-11 16:03:00 <aude> might help, so we are not depending on the dom being initialized or timing things 2015-02-11 16:03:20 <aude> it might be the dom is partially initialized, so things at the top of the page tend to get linked on large items 2015-02-11 16:03:26 <aude> but not at the bottom of ht epage
Chrome 40.0.2214.111
OS X 10.10