Nope, this has nothing to do with Fido Dido.
I've been working on this Exchange 2013 Hybrid deployment when I came across this when accessing OWA from IE11/Win8.1.
After I sign on (Exchange 2013 FBA), OWA briefly loads and then crashes with the following error message:
X-OWA-Error: ClientError;exMsg='fidoCallback' is undefined;file=https://owa.company.com/owa/:1 X-OWA-Version: 15.0.995.29 X-FEServer: EXCH-SVR X-BEServer: null
Scouring the Internet, I could not find any reference to "fidoCallback" relating to OWA, but there were some other suggestions relating to Office 365 OWA crashing in similar fashion (but no reference to fidoCallback):
- Clearing the cache (d'oh - first thing that anyone would try)
- Reset IE's security setting to default (under Advanced tab, not Security tab)
- Try InPrivate browsing
- Make sure "Enable XMLHTTP Support" is enabled
None of them worked. I thought I was going mad as I got some other people to try it out as well, same Win8.1 and IE11. All of them worked.
Then I came across an article that talked about setting IE as the default browser - http://answers.microsoft.com/en-us/ie/forum/ie11-iewindows8_1/office-365-issues-with-ie11/5fb4f186-fdf1-4cde-ab48-b97987306aa6 (I use Chrome almost exclusively - which can access OWA without a problem) and it worked. Bizarre! To set IE as default, Start > Search > Default Programs > Set your default programs > Internet Explore > Set this program as default. Restarted my computer and voila!
I can't understand why this is happening, and I might ring up Microsoft if this persists. Keep posted!
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