Unauthorized error accessing kendo.common.css @font-face files cross-domain

[Adam King]

After upgrading kendo we are getting the following error when accessing kendo.common.css cross-domain.

Failed to load resource: the server responded with a status of 401 (Unauthorized)

http://dev-sfri/Content/kendo/fonts/glyphs/WebComponentsIcons.woff?gedxeo
http://dev-sfri/Content/kendo/fonts/glyphs/WebComponentsIcons.ttf?gedxeo 

 

At first after upgrading we had a CORS policy error which we fixed in the web.config by adding an origin header
<add name="Access-Control-Allow-Origin" value="*" />

But now I'm not sure how to authorize the font request. 

Any ideas?

[Ivan Zhekov]

Hi, Adam.

We are unaware of an issue regarding fonts and 401 error. Those errors are usually not associated with CORS issues.

Could there be anything else specific  to your site? Also,  if you open the same page from the same server (not from another) do you get the same error?

Regards,
Ivan Zhekov
Progress Telerik

[Adam King]

It turns out there were 2 identical calls to get the .woff file where the first one failed and the second one passed. The second request has a cookie in the request header.

This started working after upgrading chrome. Its possible we were seeing this issue https://bugs.chromium.org/p/chromium/issues/detail?id=516192