I have a Content Search Web Part teed up in a SharePoint Online site that is returning just people results. The search is looking for users within a specific department. This is working great as I am getting the set of people I expect.

The problem I am having, however, is all of the profile image requests are producing "HTTP Error 400. The size of the request headers is too long." errors. This is occurring in FF, IE, and Chrome. Image of CSWP showing broken profile images.

Looks like all of the images requests are going back to my sites, e.g.: https://foo-my.sharepoint.com/User%20Photos/Profile%20Pictures/foo_bar.jpg. Copying URLs directly into the browser produces the same result.

I have tried multiple things, including clearing cache, cookies, etc. for all time, opening in an incognito/private window, all to no effect. My client WAS experiencing this as well, but yesterday it suddenly started working for him. I'm still stuck with the above result, however.

Additionally, I did find this post that also speaks to the same issue, though there at this point is no resolution: https://techcommunity.microsoft.com/t5/SharePoint/Chrome-quot-400-Request-Too-Long-quot-when-navigating-to-profile/td-p/37008

Has anyone in this community run into this problem, and if so, is there a work around?

  • I see this on occasion too (was one to comment in the linked TC thread). Yeah, no resolution as of yet. – Trevor Seward Sep 13 '17 at 19:31
  • Thanks for the feedback @TrevorSeward. Kind of figured it was a long shot. It seems to be a longer-term issue with my account for some reason. Been going on for over a week now. – Jim Barntish Sep 14 '17 at 15:56
  • As I noted in the TC thread, deleting the cookies works for this in a general sense. I'm not saying that'll fix your specific issue, though. It might be worth opening a case through the O365 Admin Portal. – Trevor Seward Sep 14 '17 at 16:03

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