failed to proxy: tls_process_ske_dhe:dh key too small

[Sevyls]

Expected behaviour

Proxy to https should work

Actual behaviour

proxy fails with error:
WARN [proxy]: failed to proxy /finesse/api/User/Agent001 (write EPROTO 4455228864:error:141A318A:SSL routines:tls_process_ske_dhe:dh key too small:../deps/openssl/openssl/ssl/statem/statem_clnt.c:1457:

Environment Details

• macOS 10.14
• WebStorm 2018.1.5
• Karma version 3.0.0
• ng-cli Project

Angular CLI: 7.0.3
Node: 10.8.0
OS: darwin x64
Angular: 7.0.1
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.10.3
@angular-devkit/build-angular     0.10.3
@angular-devkit/build-optimizer   0.10.3
@angular-devkit/build-webpack     0.10.3
@angular-devkit/core              7.0.3
@angular-devkit/schematics        7.0.3
@angular/cdk                      7.0.2
@angular/cli                      7.0.3
@angular/material                 7.0.2
@ngtools/webpack                  7.0.3
@schematics/angular               7.0.3
@schematics/update                0.10.3
rxjs                              6.3.3
typescript                        3.1.3
webpack                           4.19.1

• Relevant part of your karma.config.js file

{
// ..
proxies: {
  "/finesse": "https://hq-uccx.abc.inc:8445/finesse"
},
proxyValidateSSL: false
// ..
}

Steps to reproduce the behaviour

1. Use Cisco Sandbox for UCCX (requires VPN connection to sandbox environment)
   https://developer.cisco.com/docs/finesse/#!sandbox

2. Try to proxy finesse REST API with karma.conf.js

3. Run karma server

4. REST API Call:

GET  http://localhost:9876/finesse/api/User/Agent001
Authorization Basic QWdlbnQwMDE6Y2lzY29wc2R0

[johnjbarton]

Sorry tls_process_ske_dhe is not part of karma-runner. You can try to run with --logLevel=DEBUG to see if you get any more hints.