External signer: in case of error shows only “External signer failure” #31004

1. 
   cobratbq commented at 11:29 pm on September 30, 2024: none

   Is there an existing issue for this?

   • I have searched the existing issues

   Current behaviour

   Shows a dialog with title “External signer failure” and description “External signer failure”.

   Expected behaviour

   Report the error that is received as part of the execution result in the error field designated for such execution failures/errors.

   Steps to reproduce

   Have an external signer perform a signtx (stdin) operation and report back a result that includes a body to the error field of the json.

   Relevant log output

   N/A

   How did you obtain Bitcoin Core

   Pre-built binaries

   What version of Bitcoin Core are you using?

   v27.1

   Operating system and version

   Fedora Linux

   Machine specifications

   Basic laptop with Intel CPU. Nothing special.

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cobratbq