SAP Knowledge Base Article - Preview

2177353 - FATAL ERROR popup when running Web Dynpro Application


When running a Web Dynpro ABAP Application the following error is shown:

  • 'FATAL ERROR: Synchronous requests are not supported:
  • Besides, the page is blank and not loading

example screenshot:




  • Web Dynpro for ABAP
  • SAP NetWeaver release independent
  • SAP Web Application Server for SAP S/4HANA all versions


SAP NetWeaver all versions


Javascript;Fehler;Meldung von Webseite;unified;rendering , KBA , BC-WD-ABA , Web Dynpro ABAP , BC-WD-UR , Unified Rendering , BC-WD-ABA-REN , Rendering , BC-WD-ABA-RUN , Web Dynpro ABAP Runtime , Problem

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