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SAP Knowledge Base Article - PreviewSymptom
We can see the following entries in web dispatcher traces (dev_webdisp):
[Thr 47987477788416] *** ERROR => forbidden protocol upgrade to websocket {00068cac} [http_plg.c 6420]
[Thr 47987477788416] *** ERROR => HttpPlugInHandleNetData: HttpParseRequestHeader failed (rc=701) [http_plg.c 2209]
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Environment
SAP Web Dispatcher 749
Keywords
icm/HTTP/support_websocket_upgrade, forbidden protocol upgrade to websocket, web dispatcher 749 , KBA , BC-CST-WDP , Web Dispatcher , BC-CST-IC , Internet Communication Manager , Problem
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