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Why are my off campus patrons receiving an error message that says "Null Relay: HTTP session was not found" when they try to access My Account?

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Applies to
  • Tipasa
  • EZproxy
Answer

If off-campus patrons are receiving this error message, you may need to update your EZproxy config.txt file to add NeverProxy lines for Tipasa. If you use Hosted EZproxy, please contact OCLC Support to have this added.

If you use EZproxy Software, you will need to add the following lines to your config.txt file and restart the EZproxy service:

For USA use the Dublin Ohio Data Center:
NeverProxy https://authn.sd00.worldcat.org
NeverProxy https://[registry_id].account.worldcat.org
NeverProxy https://[my institution].account.worldcat.org

For the Amsterdam data center:

NeverProxy https://authn.sd02.worldcat.org
NeverProxy https://[registry_id].account.worldcat.org
NeverProxy https://[my institution].account.worldcat.org

For the Sydney data center:

NeverProxy https://authn.sd03.worldcat.org
NeverProxy https://[registry_id].account.worldcat.org
NeverProxy https://[my institution].account.worldcat.org

For the Toronto data center:

NeverProxy https://authn.sd04.worldcat.org
NeverProxy https://[registry_id].account.worldcat.org
NeverProxy https://[my institution].account.worldcat.org

Additionally, the RedirectSafe directive creates a conflict with the NeverProxy needed for this configuration to be successful. Be sure to comment out or remove any RedirectSafe lines for URLs that should be NeverProxied. Ex:

RedirectSafe https://[registry_id].account.worldcat.org
RedirectSafe https://[my institution].account.worldcat.org

 

Replace [registry_id] with your library's OCLC Registry ID (i.e. https://1234.account.worldcat.org)

Replace [my institution] with your library's custom WorldCat prefix (i.e. https://mylibrary.account.worldcat.org) 

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24056