remove babel async to generator transform

.babelrc

@@ -1,6 +1,5 @@
 {
   "plugins": [
     "transform-es2015-modules-commonjs",
-    "transform-async-to-generator",
   ]
 }

package.json

@@ -9,7 +9,6 @@
     "url": "git://github.com/localtunnel/server.git"
   },
   "dependencies": {
-    "babel-plugin-transform-async-to-generator": "6.8.0",
     "babel-plugin-transform-es2015-modules-commonjs": "6.10.3",
     "babel-polyfill": "6.9.1",
     "babel-register": "6.9.0",

proxy.js

@@ -166,10 +166,7 @@ Proxy.prototype.next_socket = function(handler) {
 
     self.debug('processing request');
     handler(sock)
-    .catch((err) => {
+    .then(() => {
-        log.error(err);
-    })
-    .finally(() => {
         if (!sock.destroyed) {
             self.debug('retuning socket');
             self.sockets.push(sock);
@@ -181,7 +178,22 @@ Proxy.prototype.next_socket = function(handler) {
         }
 
         self._process_waiting();
-    });
+    })
+    .catch((err) => {
+        log.error(err);
+
+        if (!sock.destroyed) {
+            self.debug('retuning socket');
+            self.sockets.push(sock);
+        }
+
+        // no sockets left to process waiting requests
+        if (self.sockets.length === 0) {
+            return;
+        }
+
+        self._process_waiting();
+    })
 };
 
 Proxy.prototype._done = function() {

yarn.lock

@@ -100,33 +100,6 @@ babel-generator@^6.26.0:
     source-map "^0.5.6"
     trim-right "^1.0.1"
 
-babel-helper-function-name@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
-  dependencies:
-    babel-helper-get-function-arity "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
-babel-helper-get-function-arity@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz#8f7782aa93407c41d3aa50908f89b031b1b6853d"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
-
-babel-helper-remap-async-to-generator@^6.8.0:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-remap-async-to-generator/-/babel-helper-remap-async-to-generator-6.24.1.tgz#5ec581827ad723fecdd381f1c928390676e4551b"
-  dependencies:
-    babel-helper-function-name "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
 babel-helpers@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helpers/-/babel-helpers-6.24.1.tgz#3471de9caec388e5c850e597e58a26ddf37602b2"
@@ -140,18 +113,6 @@ babel-messages@^6.23.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-syntax-async-functions@^6.8.0:
-  version "6.13.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
-
-babel-plugin-transform-async-to-generator@6.8.0:
-  version "6.8.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-async-to-generator/-/babel-plugin-transform-async-to-generator-6.8.0.tgz#fbb154f2912e00b9f0972131d7e03ebbe45684c2"
-  dependencies:
-    babel-helper-remap-async-to-generator "^6.8.0"
-    babel-plugin-syntax-async-functions "^6.8.0"
-    babel-runtime "^6.0.0"
-
 babel-plugin-transform-es2015-modules-commonjs@6.10.3:
   version "6.10.3"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.10.3.tgz#e4993a455518ca1a3c580bfda35c074e40659c5f"
@@ -218,7 +179,7 @@ babel-template@^6.24.1, babel-template@^6.26.0, babel-template@^6.8.0:
     babylon "^6.18.0"
     lodash "^4.17.4"
 
-babel-traverse@^6.24.1, babel-traverse@^6.26.0:
+babel-traverse@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
   dependencies: