diff --git a/client-ts/Microsoft.AspNetCore.SignalR.Client.TS/gulpfile.js b/client-ts/Microsoft.AspNetCore.SignalR.Client.TS/gulpfile.js
index a95a0da975..7fe933bde3 100644
--- a/client-ts/Microsoft.AspNetCore.SignalR.Client.TS/gulpfile.js
+++ b/client-ts/Microsoft.AspNetCore.SignalR.Client.TS/gulpfile.js
@@ -33,6 +33,25 @@ function browserifyModule(sourceFileName, namespace, targetFileName) {
         .pipe(gulp.dest(browserOutDir));
 }
 
+function browserifyModuleES5(sourceFileName, namespace, targetFileName, hasAsync) {
+    const browserOutDir = clientOutDir + '/../browser';
+
+    let babelOptions = { presets: ['es2015'] };
+    if (hasAsync) {
+        babelOptions.plugins = ['transform-runtime'];
+    }
+
+    return browserify(clientOutDir + '/' + sourceFileName, {standalone: namespace})
+        .transform('babelify', { presets: ['es2015'], plugins: ['transform-runtime'] })
+        .bundle()
+        .pipe(source(targetFileName))
+        .pipe(gulp.dest(browserOutDir))
+        .pipe(buffer())
+        .pipe(rename({ extname: '.min.js' }))
+        .pipe(babel({presets: ['minify']}))
+        .pipe(gulp.dest(browserOutDir));
+}
+
 gulp.task('browserify-client', ['compile-ts-client'], () => {
     return browserifyModule('HubConnection.js', 'signalR', 'signalr-client.js');
 });
@@ -41,7 +60,15 @@ gulp.task('browserify-msgpackprotocol', ['compile-ts-client'], () => {
     return browserifyModule('MessagePackHubProtocol.js', 'signalRMsgPack', 'signalr-msgpackprotocol.js');
 });
 
-gulp.task('browserify', [ 'browserify-client', 'browserify-msgpackprotocol']);
+gulp.task('browserify-clientES5', ['compile-ts-client'], () => {
+    return browserifyModuleES5('HubConnection.js', 'signalR', 'signalr-clientES5.js', /*hasAsync*/ true);
+});
+
+gulp.task('browserify-msgpackprotocolES5', ['compile-ts-client'], () => {
+    return browserifyModuleES5('MessagePackHubProtocol.js', 'signalRMsgPack', 'signalr-msgpackprotocolES5.js', /*hasAsync*/ false);
+});
+
+gulp.task('browserify', [ 'browserify-client', 'browserify-msgpackprotocol', 'browserify-clientES5', 'browserify-msgpackprotocolES5']);
 
 gulp.task('build-ts-client', ['clean', 'compile-ts-client', 'browserify']);
 
diff --git a/client-ts/package-lock.json b/client-ts/package-lock.json
index e26a74507c..0ff370bdd9 100644
--- a/client-ts/package-lock.json
+++ b/client-ts/package-lock.json
@@ -201,6 +201,30 @@
         "trim-right": "1.0.1"
       }
     },
+    "babel-helper-call-delegate": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-call-delegate/-/babel-helper-call-delegate-6.24.1.tgz",
+      "integrity": "sha1-7Oaqzdx25Bw0YfiL/Fdb0Nqi340=",
+      "dev": true,
+      "requires": {
+        "babel-helper-hoist-variables": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-traverse": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-helper-define-map": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-define-map/-/babel-helper-define-map-6.26.0.tgz",
+      "integrity": "sha1-pfVtq0GiX5fstJjH66ypgZ+Vvl8=",
+      "dev": true,
+      "requires": {
+        "babel-helper-function-name": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0",
+        "lodash": "4.17.4"
+      }
+    },
     "babel-helper-evaluate-path": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-helper-evaluate-path/-/babel-helper-evaluate-path-0.2.0.tgz",
@@ -213,6 +237,39 @@
       "integrity": "sha512-rAsPA1pWBc7e2E6HepkP2e1sXugT+Oq/VCqhyuHJ8aJ2d/ifwnJfd4Qxjm21qlW43AN8tqaeByagKK6wECFMSw==",
       "dev": true
     },
+    "babel-helper-function-name": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz",
+      "integrity": "sha1-00dbjAPtmCQqJbSDUasYOZ01gKk=",
+      "dev": true,
+      "requires": {
+        "babel-helper-get-function-arity": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0",
+        "babel-traverse": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-helper-get-function-arity": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz",
+      "integrity": "sha1-j3eCqpNAfEHTqlCQj4mwMbG2hT0=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-helper-hoist-variables": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-hoist-variables/-/babel-helper-hoist-variables-6.24.1.tgz",
+      "integrity": "sha1-HssnaJydJVE+rbyZFKc/VAi+enY=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
     "babel-helper-is-nodes-equiv": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/babel-helper-is-nodes-equiv/-/babel-helper-is-nodes-equiv-0.0.1.tgz",
@@ -231,12 +288,47 @@
       "integrity": "sha512-KJuwrOUcHbvbh6he4xRXZFLaivK9DF9o3CrvpWnK1Wp0B+1ANYABXBMgwrnNFIDK/AvicxQ9CNr8wsgivlp4Aw==",
       "dev": true
     },
+    "babel-helper-optimise-call-expression": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-optimise-call-expression/-/babel-helper-optimise-call-expression-6.24.1.tgz",
+      "integrity": "sha1-96E0J7qfc/j0+pk8VKl4gtEkQlc=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-helper-regex": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-regex/-/babel-helper-regex-6.26.0.tgz",
+      "integrity": "sha1-MlxZ+QL4LyS3T6zu0DY5VPZJXnI=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0",
+        "lodash": "4.17.4"
+      }
+    },
     "babel-helper-remove-or-void": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-helper-remove-or-void/-/babel-helper-remove-or-void-0.2.0.tgz",
       "integrity": "sha512-1Z41upf/XR+PwY7Nd+F15Jo5BiQi5205ZXUuKed3yoyQgDkMyoM7vAdjEJS/T+M6jy32sXjskMUgms4zeiVtRA==",
       "dev": true
     },
+    "babel-helper-replace-supers": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz",
+      "integrity": "sha1-v22/5Dk40XNpohPKiov3S2qQqxo=",
+      "dev": true,
+      "requires": {
+        "babel-helper-optimise-call-expression": "6.24.1",
+        "babel-messages": "6.23.0",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0",
+        "babel-traverse": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
     "babel-helper-to-multiple-sequence-expressions": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-helper-to-multiple-sequence-expressions/-/babel-helper-to-multiple-sequence-expressions-0.2.0.tgz",
@@ -276,6 +368,15 @@
         "yargs-parser": "5.0.0"
       }
     },
+    "babel-plugin-check-es2015-constants": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-check-es2015-constants/-/babel-plugin-check-es2015-constants-6.22.0.tgz",
+      "integrity": "sha1-NRV7EBQm/S/9PaP3XH0ekYNbv4o=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
     "babel-plugin-minify-builtins": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-minify-builtins/-/babel-plugin-minify-builtins-0.2.0.tgz",
@@ -371,6 +472,240 @@
         "babel-helper-is-void-0": "0.2.0"
       }
     },
+    "babel-plugin-transform-es2015-arrow-functions": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz",
+      "integrity": "sha1-RSaSy3EdX3ncf4XkQM5BufJE0iE=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-block-scoped-functions": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-block-scoped-functions/-/babel-plugin-transform-es2015-block-scoped-functions-6.22.0.tgz",
+      "integrity": "sha1-u8UbSflk1wy42OC5ToICRs46YUE=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-block-scoping": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz",
+      "integrity": "sha1-1w9SmcEwjQXBL0Y4E7CgnnOxiV8=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0",
+        "babel-traverse": "6.26.0",
+        "babel-types": "6.26.0",
+        "lodash": "4.17.4"
+      }
+    },
+    "babel-plugin-transform-es2015-classes": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-classes/-/babel-plugin-transform-es2015-classes-6.24.1.tgz",
+      "integrity": "sha1-WkxYpQyclGHlZLSyo7+ryXolhNs=",
+      "dev": true,
+      "requires": {
+        "babel-helper-define-map": "6.26.0",
+        "babel-helper-function-name": "6.24.1",
+        "babel-helper-optimise-call-expression": "6.24.1",
+        "babel-helper-replace-supers": "6.24.1",
+        "babel-messages": "6.23.0",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0",
+        "babel-traverse": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-computed-properties": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-computed-properties/-/babel-plugin-transform-es2015-computed-properties-6.24.1.tgz",
+      "integrity": "sha1-b+Ko0WiV1WNPTNmZttNICjCBWbM=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-destructuring": {
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz",
+      "integrity": "sha1-mXux8auWf2gtKwh2/jWNYOdlxW0=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-duplicate-keys": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-duplicate-keys/-/babel-plugin-transform-es2015-duplicate-keys-6.24.1.tgz",
+      "integrity": "sha1-c+s9MQypaePvnskcU3QabxV2Qj4=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-for-of": {
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-for-of/-/babel-plugin-transform-es2015-for-of-6.23.0.tgz",
+      "integrity": "sha1-9HyVsrYT3x0+zC/bdXNiPHUkhpE=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-function-name": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-function-name/-/babel-plugin-transform-es2015-function-name-6.24.1.tgz",
+      "integrity": "sha1-g0yJhTvDaxrw86TF26qU/Y6sqos=",
+      "dev": true,
+      "requires": {
+        "babel-helper-function-name": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-literals": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-literals/-/babel-plugin-transform-es2015-literals-6.22.0.tgz",
+      "integrity": "sha1-T1SgLWzWbPkVKAAZox0xklN3yi4=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-modules-amd": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-amd/-/babel-plugin-transform-es2015-modules-amd-6.24.1.tgz",
+      "integrity": "sha1-Oz5UAXI5hC1tGcMBHEvS8AoA0VQ=",
+      "dev": true,
+      "requires": {
+        "babel-plugin-transform-es2015-modules-commonjs": "6.26.0",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-modules-commonjs": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.0.tgz",
+      "integrity": "sha1-DYOUApt9xqvhqX7xgeAHWN0uXYo=",
+      "dev": true,
+      "requires": {
+        "babel-plugin-transform-strict-mode": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-modules-systemjs": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz",
+      "integrity": "sha1-/4mhQrkRmpBhlfXxBuzzBdlAfSM=",
+      "dev": true,
+      "requires": {
+        "babel-helper-hoist-variables": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-modules-umd": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-modules-umd/-/babel-plugin-transform-es2015-modules-umd-6.24.1.tgz",
+      "integrity": "sha1-rJl+YoXNGO1hdq22B9YCNErThGg=",
+      "dev": true,
+      "requires": {
+        "babel-plugin-transform-es2015-modules-amd": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-object-super": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-object-super/-/babel-plugin-transform-es2015-object-super-6.24.1.tgz",
+      "integrity": "sha1-JM72muIcuDp/hgPa0CH1cusnj40=",
+      "dev": true,
+      "requires": {
+        "babel-helper-replace-supers": "6.24.1",
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-parameters": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-parameters/-/babel-plugin-transform-es2015-parameters-6.24.1.tgz",
+      "integrity": "sha1-V6w1GrScrxSpfNE7CfZv3wpiXys=",
+      "dev": true,
+      "requires": {
+        "babel-helper-call-delegate": "6.24.1",
+        "babel-helper-get-function-arity": "6.24.1",
+        "babel-runtime": "6.26.0",
+        "babel-template": "6.26.0",
+        "babel-traverse": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-shorthand-properties": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-shorthand-properties/-/babel-plugin-transform-es2015-shorthand-properties-6.24.1.tgz",
+      "integrity": "sha1-JPh11nIch2YbvZmkYi5R8U3jiqA=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-spread": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-spread/-/babel-plugin-transform-es2015-spread-6.22.0.tgz",
+      "integrity": "sha1-1taKmfia7cRTbIGlQujdnxdG+NE=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-sticky-regex": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-sticky-regex/-/babel-plugin-transform-es2015-sticky-regex-6.24.1.tgz",
+      "integrity": "sha1-AMHNsaynERLN8M9hJsLta0V8zbw=",
+      "dev": true,
+      "requires": {
+        "babel-helper-regex": "6.26.0",
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-template-literals": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-template-literals/-/babel-plugin-transform-es2015-template-literals-6.22.0.tgz",
+      "integrity": "sha1-qEs0UPfp+PH2g51taH2oS7EjbY0=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-typeof-symbol": {
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-typeof-symbol/-/babel-plugin-transform-es2015-typeof-symbol-6.23.0.tgz",
+      "integrity": "sha1-3sCfHN3/lLUqxz1QXITfWdzOs3I=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
+    "babel-plugin-transform-es2015-unicode-regex": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-unicode-regex/-/babel-plugin-transform-es2015-unicode-regex-6.24.1.tgz",
+      "integrity": "sha1-04sS9C6nMj9yk4fxinxa4frrNek=",
+      "dev": true,
+      "requires": {
+        "babel-helper-regex": "6.26.0",
+        "babel-runtime": "6.26.0",
+        "regexpu-core": "2.0.0"
+      }
+    },
     "babel-plugin-transform-inline-consecutive-adds": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-inline-consecutive-adds/-/babel-plugin-transform-inline-consecutive-adds-0.2.0.tgz",
@@ -404,6 +739,15 @@
         "esutils": "2.0.2"
       }
     },
+    "babel-plugin-transform-regenerator": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz",
+      "integrity": "sha1-4HA2lvveJ/Cj78rPi03KL3s6jy8=",
+      "dev": true,
+      "requires": {
+        "regenerator-transform": "0.10.1"
+      }
+    },
     "babel-plugin-transform-regexp-constructors": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-regexp-constructors/-/babel-plugin-transform-regexp-constructors-0.2.0.tgz",
@@ -431,18 +775,69 @@
         "babel-helper-evaluate-path": "0.2.0"
       }
     },
+    "babel-plugin-transform-runtime": {
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-runtime/-/babel-plugin-transform-runtime-6.23.0.tgz",
+      "integrity": "sha1-iEkNRGUC6puOfvsP4J7E2ZR5se4=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
     "babel-plugin-transform-simplify-comparison-operators": {
       "version": "6.8.5",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-simplify-comparison-operators/-/babel-plugin-transform-simplify-comparison-operators-6.8.5.tgz",
       "integrity": "sha512-B3HlBZb+Uq86nRj5yNPO6pJ3noEdqHvzYkEYoUWtrsWTv48ZIRatYlumoOiif/v8llF13YjYjx9zhyznDx+N9g==",
       "dev": true
     },
+    "babel-plugin-transform-strict-mode": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-strict-mode/-/babel-plugin-transform-strict-mode-6.24.1.tgz",
+      "integrity": "sha1-1fr3qleKZbvlkc9e2uBKDGcCB1g=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0"
+      }
+    },
     "babel-plugin-transform-undefined-to-void": {
       "version": "6.8.3",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-undefined-to-void/-/babel-plugin-transform-undefined-to-void-6.8.3.tgz",
       "integrity": "sha512-goYwp8dMrzHD6x9GjZ2M85Mk2vxf1h85CnUgAjfftUnlJvzF4uj5MrbReHBTbjQ96C8CuRzvhYZ3tv8H3Sc1ZA==",
       "dev": true
     },
+    "babel-preset-es2015": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz",
+      "integrity": "sha1-1EBQ1rwsn+6nAqrzjXJ6AhBTiTk=",
+      "dev": true,
+      "requires": {
+        "babel-plugin-check-es2015-constants": "6.22.0",
+        "babel-plugin-transform-es2015-arrow-functions": "6.22.0",
+        "babel-plugin-transform-es2015-block-scoped-functions": "6.22.0",
+        "babel-plugin-transform-es2015-block-scoping": "6.26.0",
+        "babel-plugin-transform-es2015-classes": "6.24.1",
+        "babel-plugin-transform-es2015-computed-properties": "6.24.1",
+        "babel-plugin-transform-es2015-destructuring": "6.23.0",
+        "babel-plugin-transform-es2015-duplicate-keys": "6.24.1",
+        "babel-plugin-transform-es2015-for-of": "6.23.0",
+        "babel-plugin-transform-es2015-function-name": "6.24.1",
+        "babel-plugin-transform-es2015-literals": "6.22.0",
+        "babel-plugin-transform-es2015-modules-amd": "6.24.1",
+        "babel-plugin-transform-es2015-modules-commonjs": "6.26.0",
+        "babel-plugin-transform-es2015-modules-systemjs": "6.24.1",
+        "babel-plugin-transform-es2015-modules-umd": "6.24.1",
+        "babel-plugin-transform-es2015-object-super": "6.24.1",
+        "babel-plugin-transform-es2015-parameters": "6.24.1",
+        "babel-plugin-transform-es2015-shorthand-properties": "6.24.1",
+        "babel-plugin-transform-es2015-spread": "6.22.0",
+        "babel-plugin-transform-es2015-sticky-regex": "6.24.1",
+        "babel-plugin-transform-es2015-template-literals": "6.22.0",
+        "babel-plugin-transform-es2015-typeof-symbol": "6.23.0",
+        "babel-plugin-transform-es2015-unicode-regex": "6.24.1",
+        "babel-plugin-transform-regenerator": "6.26.0"
+      }
+    },
     "babel-preset-minify": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/babel-preset-minify/-/babel-preset-minify-0.2.0.tgz",
@@ -541,6 +936,16 @@
         "to-fast-properties": "1.0.3"
       }
     },
+    "babelify": {
+      "version": "7.3.0",
+      "resolved": "https://registry.npmjs.org/babelify/-/babelify-7.3.0.tgz",
+      "integrity": "sha1-qlau3nBn/XvVSWZu4W3ChQh+iOU=",
+      "dev": true,
+      "requires": {
+        "babel-core": "6.26.0",
+        "object-assign": "4.1.1"
+      }
+    },
     "babylon": {
       "version": "6.18.0",
       "resolved": "https://registry.npmjs.org/babylon/-/babylon-6.18.0.tgz",
@@ -3182,12 +3587,29 @@
         "resolve": "1.3.3"
       }
     },
+    "regenerate": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.3.2.tgz",
+      "integrity": "sha1-0ZQcZ7rUN+G+dkM63Vs4X5WxkmA=",
+      "dev": true
+    },
     "regenerator-runtime": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.11.0.tgz",
       "integrity": "sha512-/aA0kLeRb5N9K0d4fw7ooEbI+xDe+DKD499EQqygGqeS8N3xto15p09uY2xj7ixP81sNPXvRLnAQIqdVStgb1A==",
       "dev": true
     },
+    "regenerator-transform": {
+      "version": "0.10.1",
+      "resolved": "https://registry.npmjs.org/regenerator-transform/-/regenerator-transform-0.10.1.tgz",
+      "integrity": "sha512-PJepbvDbuK1xgIgnau7Y90cwaAmO/LCLMI2mPvaXq2heGMR3aWW5/BQvYrhJ8jgmQjXewXvBjzfqKcVOmhjZ6Q==",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0",
+        "babel-types": "6.26.0",
+        "private": "0.1.7"
+      }
+    },
     "regex-cache": {
       "version": "0.4.3",
       "resolved": "https://registry.npmjs.org/regex-cache/-/regex-cache-0.4.3.tgz",
@@ -3198,6 +3620,40 @@
         "is-primitive": "2.0.0"
       }
     },
+    "regexpu-core": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/regexpu-core/-/regexpu-core-2.0.0.tgz",
+      "integrity": "sha1-SdA4g3uNz4v6W5pCE5k45uoq4kA=",
+      "dev": true,
+      "requires": {
+        "regenerate": "1.3.2",
+        "regjsgen": "0.2.0",
+        "regjsparser": "0.1.5"
+      }
+    },
+    "regjsgen": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/regjsgen/-/regjsgen-0.2.0.tgz",
+      "integrity": "sha1-bAFq3qxVT3WCP+N6wFuS1aTtsfc=",
+      "dev": true
+    },
+    "regjsparser": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/regjsparser/-/regjsparser-0.1.5.tgz",
+      "integrity": "sha1-fuj4Tcb6eS0/0K4ijSS9lJ6tIFw=",
+      "dev": true,
+      "requires": {
+        "jsesc": "0.5.0"
+      },
+      "dependencies": {
+        "jsesc": {
+          "version": "0.5.0",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-0.5.0.tgz",
+          "integrity": "sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=",
+          "dev": true
+        }
+      }
+    },
     "remove-trailing-separator": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/remove-trailing-separator/-/remove-trailing-separator-1.0.1.tgz",
diff --git a/client-ts/package.json b/client-ts/package.json
index ab7dbe67a8..0afaf0e505 100644
--- a/client-ts/package.json
+++ b/client-ts/package.json
@@ -25,6 +25,9 @@
   "devDependencies": {
     "@types/msgpack5": "^3.4.0",
     "babel-minify": "^0.2.0",
+    "babel-plugin-transform-runtime": "^6.23.0",
+    "babel-preset-es2015": "^6.24.1",
+    "babelify": "^7.3.0",
     "browserify": "^13.1.1",
     "buffer": "^5.0.7",
     "del": "^2.2.2",