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3325685 - 502 bad gateway error appears when accessing BTP applications if secure renegotiation is disabled on target system

Symptom

  • You developed a Node.js application or MTA application includes app router module and deployed it on BTP cloud foundry. The application makes external call to other URLs.
  • You see error "502 Bad Gateway" when accessing it. 
  • The application log shows below error.
write EPROTO C0ExxxxxxxxF0000:error:0A000152:SSL routines:final_renegotiate:unsafe legacy renegotiation disabled:../deps/openssl/openssl/ssl/statem/extensions.c:921:


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Environment

SAP Business Technology Platform, Cloud Foundry

Product

SAP Business Technology Platform all versions

Keywords

BTP, CF, Cloud Foundry, MTA, multi target, node, js,  EPROTO, renegotiation, secure, unsafe, LTS, 502, Bad Gateway, Registered endpoint failed to handle the request , KBA , BC-CP-CF-BLDP , Runtimes Buildpacks , BC-CP-CF-HTML5 , HTML5 Application Repository Service , Problem

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