Multiple access-control-allow-origin headers causing errors in Chrome RRS feed

  • Question

  • There are multiple access-control-allow-origin headers coming back from the REST service:

    1. access-control-allow-origin:
    2. access-control-allow-origin:

    This is causing the following error in Chrome: 

    Failed to load**********&UriScheme=https: The 'Access-Control-Allow-Origin' header contains multiple values '*, *', but only one is allowed. Origin 'http://localhost' is therefore not allowed access.

    The issue has been happening for a few hours now, and is affecting more than one of our environments. Why is this behavior happening?

    Tuesday, December 12, 2017 7:17 PM


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