When bi-directional communication cannot be established because a list of authorized sources cannot be found, the following message is displayed on the scriptexception tab in the Diagnostics Console:
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SourceOrigin List is empty or cannot be found
This message occurs when empty values exist within the sourceOriginWhitelist element in the Web Server web.config file. The list of authorized sources cannot be found and bi-directional communication cannot be established. To configure specific sources as authorized sources for bi-directional communication between your Epic environment and the OnBase Web Viewer, see Enabling Bi-Directional Communication.