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3579759 - ERR_EMPTY_RESPONSE error page is displayed while accessing SAP through the browser

Symptom

While accessing the system through the browser, an error page with "ERR_EMPTY_RESPONSE" is displayed.

At the same time, the trace file of the SAP Web Dispatcher (dev_webdisp) or ICM (dev_icm) is updated with entries similar to the following:

[Thr ...] [date and time]
[Thr ...] IcmParseSniFromRawData: Unexpected TLS record content type 0x47
[Thr ...] *** ERROR => IcmIConnPeekSni: IcmParseSniFromRawData() failed: Invalid parameter (-2) [icxxconn.c   2749]
[Thr ...] *** WARNING =>  Peer is no SSL/TLS Client ["GET /sap/......" 47 45 54 20 2f 73 61 70 2f 77 64 69 73 70 2f 61]
[Thr ...] *** ERROR => IcmConnInitServerSSL: SapSSLSessionStartNB returned (-26): SSSLRC_HTTP_REQUEST [icxxconn.c   3144]
[Thr ...] *** WARNING => IcmConnInitServerSSL: Raw (non-SSL) traffic arriving at SSL port. Hint: This is usally caused by HTTP traffic arriving at the HTTPS port. [icxxconn.c   3184]


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Environment

  • SAP Web Dispatcher
  • ABAP Platform based product
  • SAP NetWeaver based product

Product

ABAP platform all versions ; SAP NetWeaver all versions ; SAP Web Dispatcher all versions

Keywords

ERR_EMPTY_RESPONSE, Peer is no SSL/TLS Client , KBA , BC-CST-WDP , Web Dispatcher , BC-CST-IC , Internet Communication Manager , Problem

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