fix: missing config/support should not be treated as 500 (#694)

Author: dominique-pfister

src/steps/validate-captcha.js

@@ -55,10 +55,10 @@ export default async function validateCaptcha(state, body) {
   // Check captcha type is correctly configured
   const validator = SUPPORTED_CAPTCHA_TYPES[captcha.type];
   if (!validator) {
-    throw new PipelineStatusError(500, `The captcha type ${captcha.type} is not supported.`);
+    throw new PipelineStatusError(400, `The captcha type ${captcha.type} is not supported.`);
   }
   if (!captcha.secret) {
-    throw new PipelineStatusError(500, 'Captcha secret key is not configured.');
+    throw new PipelineStatusError(400, 'Captcha secret key is not configured.');
   }
 
   // Perform validation

test/steps/validate-captcha.test.js

@@ -38,7 +38,7 @@ describe('Captcha verification', () => {
       }, {});
     };
 
-    await assert.rejects(validate, { code: 500, message: 'The captcha type reCaptcha v3 is not supported.' });
+    await assert.rejects(validate, { code: 400, message: 'The captcha type reCaptcha v3 is not supported.' });
   });
 
   it('returns unsuccessful state with no captcha secret configured', async () => {
@@ -52,7 +52,7 @@ describe('Captcha verification', () => {
       }, {});
     };
 
-    await assert.rejects(validate, { code: 500, message: 'Captcha secret key is not configured.' });
+    await assert.rejects(validate, { code: 400, message: 'Captcha secret key is not configured.' });
   });
 
   it('returns unsuccessful state if recaptcha response is missing from array body', async () => {