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After clicking 'View in' and selecting a report format, a spinning cursor appears on the map and the report is not generated. In the network traffic, an HTTP 404 (404.13, 404.14, or 404.15) error is returned on requests to the Esri Maps for IBM Cognos proxy. This issue is observed when using Mozilla Firefox or Google Chrome in situations where Internet Information Services (IIS) is being used as the web server for the Esri Maps for IBM Cognos (EM4C) Gateway.
This issue is encountered when the content length, URL length, and/or the query string length exceed the maximum lengths specified in IIS.
To address this issue, the relevant IIS setting must be changed to allow longer content, URL, or query string lengths.
The following steps are for IIS 7, 7.5, 8, or 8.5, and require the IIS Request Filtering filter to be installed.