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3137626 - Accessing WebGUI shows blank screen through SAP Web Dispatcher

Symptom

Accessing WebGUI URL through SAP Web Dispatcher shows blank screen.

Browser shows error as "400 Bad Request"

dev_webdisp trace shows below error:


[Thr 140237920491264] * ERROR => URLDecode recognized invalid character in form field of body [ictxxfilt.c 300]

[Thr 140237920491264] * ERROR => illegal request {029e9a19} [http_auth.c 1053]

This is only valid when above symptoms are observed.


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Environment

  • SAP GUI for HTML
  • SAP Netweaver
  • ABAP Platform

Product

SAP S/4HANA 2020

Keywords

webgui, SAP GUI for HTML, 400, web dispatcher, blank screen, [ICMSAUTHILLEGALREQUEST], ICMSAUTHILLEGALREQUEST , KBA , BC-CST-WDP , Web Dispatcher , Problem

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