Fixed The timeoutErrorMessage property in config not work with Node.js (fixes #3580)

lib/adapters/http.js

@@ -300,12 +300,11 @@ module.exports = function httpAdapter(config) {
       // ClientRequest.setTimeout will be fired on the specify milliseconds, and can make sure that abort() will be fired after connect.
       req.setTimeout(timeout, function handleRequestTimeout() {
         req.abort();
-        reject(createError(
-          'timeout of ' + timeout + 'ms exceeded',
-          config,
-          config.transitional && config.transitional.clarifyTimeoutError ? 'ETIMEDOUT' : 'ECONNABORTED',
-          req
-        ));
+        var timeoutErrorMessage = 'timeout of ' + config.timeout + 'ms exceeded';
+        if (config.timeoutErrorMessage) {
+          timeoutErrorMessage = config.timeoutErrorMessage;
+        }
+        reject(createError(timeoutErrorMessage, config, 'ECONNABORTED', req));
       });
     }
 

test/unit/adapters/http.js

@@ -116,6 +116,36 @@ describe('supports http with nodejs', function () {
     });
   });
 
+  it('should respect the timeoutErrorMessage property', function (done) {
+
+    server = http.createServer(function (req, res) {
+      setTimeout(function () {
+        res.end();
+      }, 1000);
+    }).listen(4444, function () {
+      var success = false, failure = false;
+      var error;
+
+      axios.get('http://localhost:4444/', {
+        timeout: 250,
+        timeoutErrorMessage: 'oops, timeout',
+      }).then(function (res) {
+        success = true;
+      }).catch(function (err) {
+        error = err;
+        failure = true;
+      });
+
+      setTimeout(function () {
+        assert.strictEqual(success, false, 'request should not succeed');
+        assert.strictEqual(failure, true, 'request should fail');
+        assert.strictEqual(error.code, 'ECONNABORTED');
+        assert.strictEqual(error.message, 'oops, timeout');
+        done();
+      }, 300);
+    });
+  });
+
   it('should allow passing JSON', function (done) {
     var data = {
       firstName: 'Fred',