2916057 - Refused to connect / Internal Server Error when opening apps on cFLP

• A "cppcf.authentication.<datacenter>.hana.ondemand.com refused to connect" error is displayed when opening applications on the Central Fiori Launchpad (Cloud Portal service on Cloud Foundry)

or directly an "Internal Server Error"

• Checking the network traces, it is possible to see a 500 Internal Server Error to https://cppcf.authentication.<datacenter>.hana.ondemand.com/<path> or https://<subdomain>.<runtime destination>.launchpad.cfapps.<region>.hana.ondemand.com/path
  
  
• The below errors are also displayed on the console:
• Refused to display 'https://cppcf.authentication.<datacenter>.hana.ondemand.com/...' in a frame because it set 'X-Frame-Options' to 'deny'.
• Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://cppcf-sapdelim-<destination>.cpp.cfapps.<datacenter>.hana.ondemand.com') does not match the recipient window's origin ('null').

• RenderManager-dbg.js : <line>
  GET https://<subdomain>.<runtime destination>.launchpad.cfapps.<region>.hana.ondemand.com/path 500 (Internal Server Error)

• Checking the HTTP trace in HttpWatch Studio you will find the net::ERR_BLOCKED_BY_RESPONSE.
  
  

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

• SAP Business Technology Platform
• Central Fiori Launchpad (cFLP)
• SAP Cloud Foundry Portal Service
• SAP Cloud Foundry Launchpad Service
• SAP Build Work Zone, Advanced edition
• SAP Build Work Zone, Standard edition

cflp; central fiori launchpad; cloud foundry; flp; flp@cf; scp; sap; cloud platform; iframe; cross origin; cross-origin cors; deny allow; x-frame-options; 500 internal server error; authentication; cppcf.authentication; wda; webgui; sapui5; fiori app; refused to connect; portal; ERR_BLOCKED_BY_RESPONSE; net::ERR_BLOCKED_BY_RESPONSE; SAMEORIGIN; blocked, WorkZone; Work Zone; Cloud Portal; /oauth/authorize; RenderManager-dbg.js; RenderManager; RenderManager-dbg , KBA , EP-WZ-SM , Site Management (non selectable) , Problem