diff --git a/client/Home.md b/client/Home.md
index fbfada0..a34f27a 100644
--- a/client/Home.md
+++ b/client/Home.md
@@ -46,6 +46,11 @@ Append a `/` at the end of a URL to view a listing of all the files in a package
       <td></td>
       <td>Return metadata about any file in a package as JSON (e.g. `/any/file?meta`)</td>
     </tr>
+    <tr>
+      <td>`expand`</td>
+      <td></td>
+      <td>Expands all ["bare" `import` specifiers](https://html.spec.whatwg.org/multipage/webappapis.html#resolve-a-module-specifier) in JavaScript modules to unpkg URLs. This feature is *very experimental*</td>
+    </tr>
   </tbody>
 </table>
 
diff --git a/package.json b/package.json
index 9158c3a..71e86d9 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,6 @@
     "countries-list": "^1.3.2",
     "csso": "^3.1.1",
     "date-fns": "^1.28.1",
-    "etag": "^1.8.0",
     "express": "^4.15.2",
     "gunzip-maybe": "^1.4.0",
     "http-client": "^4.3.1",
@@ -39,7 +38,7 @@
   },
   "devDependencies": {
     "autoprefixer": "6.7.2",
-    "babel-core": "6.22.1",
+    "babel-core": "^6.26.0",
     "babel-eslint": "7.1.1",
     "babel-jest": "18.0.0",
     "babel-loader": "6.2.10",
diff --git a/server/middleware/parsePackageURL.js b/server/middleware/parsePackageURL.js
index 8887766..8327c29 100644
--- a/server/middleware/parsePackageURL.js
+++ b/server/middleware/parsePackageURL.js
@@ -1,8 +1,8 @@
-const qs = require('querystring')
 const validateNPMPackageName = require('validate-npm-package-name')
 const PackageURL = require('../PackageURL')
 
 const KnownQueryParams = {
+  expand: true,
   main: true,
   meta: true
 }
@@ -15,15 +15,29 @@ function queryIsKnown(query) {
   return Object.keys(query).every(isKnownQueryParam)
 }
 
-function createSearch(query, withMeta) {
-  let search = ''
+function sanitizeQuery(query) {
+  const saneQuery = {}
 
-  if (query.main)
-    search += `main=${encodeURIComponent(query.main)}`
+  Object.keys(query).forEach(function (param) {
+    if (isKnownQueryParam(param))
+      saneQuery[param] = query[param]
+  })
 
-  // Do this manually because stringify uses ?meta= for { meta: true }
-  if (query.meta != null || query.json != null || withMeta)
-    search += (search ? '&' : '') + 'meta'
+  return saneQuery
+}
+
+function createSearch(query) {
+  const params = []
+
+  Object.keys(query).forEach(function (param) {
+    if (query[param] === '') {
+      params.push(param) // Omit the trailing "=" from param=
+    } else {
+      params.push(`${param}=${encodeURIComponent(query[param])}`)
+    }
+  })
+
+  const search = params.join('&')
 
   return search ? `?${search}` : ''
 }
@@ -33,8 +47,11 @@ function createSearch(query, withMeta) {
  */
 function parsePackageURL(req, res, next) {
   // Redirect /_meta/pkg to /pkg?meta.
-  if (req.path.match(/^\/_meta\//))
-    return res.redirect(req.path.substr(6) + createSearch(req.query, true))
+  if (req.path.match(/^\/_meta\//)) {
+    delete req.query.json
+    req.query.meta = ''
+    return res.redirect(req.path.substr(6) + createSearch(req.query))
+  }
 
   const url = PackageURL.parse(req.url)
 
@@ -52,7 +69,7 @@ function parsePackageURL(req, res, next) {
   // with only known params so they can be served from the cache. This
   // prevents people using random query params designed to bust the cache.
   if (!queryIsKnown(url.query))
-    return res.redirect(url.pathname + createSearch(url.query))
+    return res.redirect(url.pathname + createSearch(sanitizeQuery(url.query)))
 
   req.packageName = url.packageName
   req.packageVersion = url.packageVersion
diff --git a/server/middleware/serveFile.js b/server/middleware/serveFile.js
index a876aa5..93a7905 100644
--- a/server/middleware/serveFile.js
+++ b/server/middleware/serveFile.js
@@ -1,6 +1,7 @@
 const fs = require('fs')
 const path = require('path')
-const etag = require('etag')
+const babel = require('babel-core')
+const unpkgRewrite = require('babel-plugin-unpkg-rewrite')
 const getMetadata = require('./utils/getMetadata')
 const getFileContentType = require('./utils/getFileContentType')
 const getIndexHTML = require('./utils/getIndexHTML')
@@ -15,26 +16,16 @@ const AutoIndex = !process.env.DISABLE_INDEX
  */
 const MaximumDepth = 128
 
-function sendFile(res, file, stats) {
-  let contentType = getFileContentType(file)
+const FileTransforms = {
+  expand: function (file, callback) {
+    const options = {
+      plugins: [ unpkgRewrite ]
+    }
 
-  if (contentType === 'text/html')
-    contentType = 'text/plain' // We can't serve HTML because bad people :(
-
-  res.writeHead(200, {
-    'Content-Type': contentType,
-    'Content-Length': stats.size,
-    'ETag': etag(stats)
-  })
-
-  const stream = fs.createReadStream(file)
-
-  stream.on('error', (error) => {
-    console.error(error)
-    res.status(500).type('text').send('There was an error serving this file')
-  })
-
-  stream.pipe(res)
+    babel.transformFile(file, options, function (error, result) {
+      callback(error, result && result.code)
+    })
+  }
 }
 
 /**
@@ -55,14 +46,32 @@ function serveFile(req, res, next) {
       }
     })
   } else if (req.stats.isFile()) {
+    const file = path.join(req.packageDir, req.file)
+
+    let contentType = getFileContentType(file)
+
+    if (contentType === 'text/html')
+      contentType = 'text/plain' // We can't serve HTML because bad people :(
+
     // Cache files for 1 year.
     res.set({
+      'Content-Type': contentType,
       'Cache-Control': 'public, max-age=31536000',
       'Cache-Tag': 'file'
     })
 
-    // TODO: use res.sendFile instead of our own sendFile?
-    sendFile(res, path.join(req.packageDir, req.file), req.stats)
+    if (contentType === 'application/javascript' && req.query.expand != null) {
+      FileTransforms.expand(file, function (error, code) {
+        if (error) {
+          console.error(error)
+          res.status(500).type('text').send(`Cannot generate index page for ${req.packageSpec}${req.filename}`)
+        } else {
+          res.send(code)
+        }
+      })
+    } else {
+      res.sendFile(file)
+    }
   } else if (AutoIndex && req.stats.isDirectory()) {
     getIndexHTML(req.packageInfo, req.packageVersion, req.packageDir, req.file, function (error, html) {
       if (error) {
diff --git a/yarn.lock b/yarn.lock
index caa68ef..df99667 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -235,61 +235,37 @@ aws4@^1.2.1:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
 
-babel-code-frame@^6.11.0, babel-code-frame@^6.16.0, babel-code-frame@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.22.0.tgz#027620bee567a88c32561574e7fd0801d33118e4"
+babel-code-frame@^6.11.0, babel-code-frame@^6.16.0, babel-code-frame@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
   dependencies:
-    chalk "^1.1.0"
+    chalk "^1.1.3"
     esutils "^2.0.2"
-    js-tokens "^3.0.0"
+    js-tokens "^3.0.2"
 
-babel-core@6.22.1, babel-core@^6.0.0:
-  version "6.22.1"
-  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.22.1.tgz#9c5fd658ba1772d28d721f6d25d968fc7ae21648"
+babel-core@^6.0.0, babel-core@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
   dependencies:
-    babel-code-frame "^6.22.0"
-    babel-generator "^6.22.0"
-    babel-helpers "^6.22.0"
-    babel-messages "^6.22.0"
-    babel-register "^6.22.0"
-    babel-runtime "^6.22.0"
-    babel-template "^6.22.0"
-    babel-traverse "^6.22.1"
-    babel-types "^6.22.0"
-    babylon "^6.11.0"
-    convert-source-map "^1.1.0"
-    debug "^2.1.1"
-    json5 "^0.5.0"
-    lodash "^4.2.0"
-    minimatch "^3.0.2"
-    path-is-absolute "^1.0.0"
-    private "^0.1.6"
-    slash "^1.0.0"
-    source-map "^0.5.0"
-
-babel-core@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.24.1.tgz#8c428564dce1e1f41fb337ec34f4c3b022b5ad83"
-  dependencies:
-    babel-code-frame "^6.22.0"
-    babel-generator "^6.24.1"
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
     babel-helpers "^6.24.1"
     babel-messages "^6.23.0"
-    babel-register "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-    babylon "^6.11.0"
-    convert-source-map "^1.1.0"
-    debug "^2.1.1"
-    json5 "^0.5.0"
-    lodash "^4.2.0"
-    minimatch "^3.0.2"
-    path-is-absolute "^1.0.0"
-    private "^0.1.6"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.0"
+    debug "^2.6.8"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.7"
     slash "^1.0.0"
-    source-map "^0.5.0"
+    source-map "^0.5.6"
 
 babel-eslint@7.1.1:
   version "7.1.1"
@@ -301,17 +277,17 @@ babel-eslint@7.1.1:
     babylon "^6.13.0"
     lodash.pickby "^4.6.0"
 
-babel-generator@^6.18.0, babel-generator@^6.22.0, babel-generator@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.24.1.tgz#e715f486c58ded25649d888944d52aa07c5d9497"
+babel-generator@^6.18.0, babel-generator@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.0.tgz#ac1ae20070b79f6e3ca1d3269613053774f20dc5"
   dependencies:
     babel-messages "^6.23.0"
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
     detect-indent "^4.0.0"
     jsesc "^1.3.0"
-    lodash "^4.2.0"
-    source-map "^0.5.0"
+    lodash "^4.17.4"
+    source-map "^0.5.6"
     trim-right "^1.0.1"
 
 babel-helper-builder-binary-assignment-operator-visitor@^6.24.1:
@@ -416,7 +392,7 @@ babel-helper-replace-supers@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-helpers@^6.22.0, babel-helpers@^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"
   dependencies:
@@ -440,7 +416,7 @@ babel-loader@6.2.10:
     mkdirp "^0.5.1"
     object-assign "^4.0.1"
 
-babel-messages@^6.22.0, babel-messages@^6.23.0:
+babel-messages@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
   dependencies:
@@ -822,17 +798,17 @@ babel-preset-react@6.22.0:
     babel-plugin-transform-react-jsx-self "^6.22.0"
     babel-plugin-transform-react-jsx-source "^6.22.0"
 
-babel-register@^6.22.0, babel-register@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.24.1.tgz#7e10e13a2f71065bdfad5a1787ba45bca6ded75f"
+babel-register@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.26.0.tgz#6ed021173e2fcb486d7acb45c6009a856f647071"
   dependencies:
-    babel-core "^6.24.1"
-    babel-runtime "^6.22.0"
-    core-js "^2.4.0"
+    babel-core "^6.26.0"
+    babel-runtime "^6.26.0"
+    core-js "^2.5.0"
     home-or-tmp "^2.0.0"
-    lodash "^4.2.0"
+    lodash "^4.17.4"
     mkdirp "^0.5.1"
-    source-map-support "^0.4.2"
+    source-map-support "^0.4.15"
 
 babel-runtime@6.22.0:
   version "6.22.0"
@@ -841,49 +817,56 @@ babel-runtime@6.22.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
-babel-runtime@^6.18.0, babel-runtime@^6.20.0, babel-runtime@^6.22.0:
+babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  dependencies:
+    core-js "^2.4.0"
+    regenerator-runtime "^0.11.0"
+
+babel-runtime@^6.20.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.23.0.tgz#0a9489f144de70efb3ce4300accdb329e2fc543b"
   dependencies:
     core-js "^2.4.0"
     regenerator-runtime "^0.10.0"
 
-babel-template@^6.16.0, babel-template@^6.22.0, babel-template@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.24.1.tgz#04ae514f1f93b3a2537f2a0f60a5a45fb8308333"
+babel-template@^6.16.0, babel-template@^6.22.0, babel-template@^6.24.1, babel-template@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
   dependencies:
-    babel-runtime "^6.22.0"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-    babylon "^6.11.0"
-    lodash "^4.2.0"
+    babel-runtime "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    lodash "^4.17.4"
 
-babel-traverse@^6.15.0, babel-traverse@^6.18.0, babel-traverse@^6.22.1, babel-traverse@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.24.1.tgz#ab36673fd356f9a0948659e7b338d5feadb31695"
+babel-traverse@^6.15.0, babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
   dependencies:
-    babel-code-frame "^6.22.0"
+    babel-code-frame "^6.26.0"
     babel-messages "^6.23.0"
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
-    babylon "^6.15.0"
-    debug "^2.2.0"
-    globals "^9.0.0"
-    invariant "^2.2.0"
-    lodash "^4.2.0"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    debug "^2.6.8"
+    globals "^9.18.0"
+    invariant "^2.2.2"
+    lodash "^4.17.4"
 
-babel-types@^6.15.0, babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.22.0, babel-types@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.24.1.tgz#a136879dc15b3606bda0d90c1fc74304c2ff0975"
+babel-types@^6.15.0, babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
   dependencies:
-    babel-runtime "^6.22.0"
+    babel-runtime "^6.26.0"
     esutils "^2.0.2"
-    lodash "^4.2.0"
-    to-fast-properties "^1.0.1"
+    lodash "^4.17.4"
+    to-fast-properties "^1.0.3"
 
-babylon@^6.11.0, babylon@^6.13.0, babylon@^6.15.0:
-  version "6.17.1"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.17.1.tgz#17f14fddf361b695981fe679385e4f1c01ebd86f"
+babylon@^6.13.0, babylon@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
 
 balanced-match@^0.4.1, balanced-match@^0.4.2:
   version "0.4.2"
@@ -1083,7 +1066,7 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -1245,6 +1228,10 @@ commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
 
+component-emitter@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
+
 compressible@~2.0.8:
   version "2.0.10"
   resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.10.tgz#feda1c7f7617912732b29bf8cf26252a20b9eecd"
@@ -1308,7 +1295,7 @@ content-type@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.2.tgz#b7d113aee7a8dd27bd21133c4dc2529df1721eed"
 
-convert-source-map@^1.1.0:
+convert-source-map@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.0.tgz#9acd70851c6d5dfdd93d9282e5edf94a03ff46b5"
 
@@ -1320,6 +1307,10 @@ cookie@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 
+cookiejar@^2.0.6:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.1.tgz#41ad57b1b555951ec171412a81942b1e8200d34a"
+
 core-js@^1.0.0:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
@@ -1328,6 +1319,10 @@ core-js@^2.4.0:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
 
+core-js@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.0.tgz#569c050918be6486b3837552028ae0466b717086"
+
 core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -1533,7 +1528,7 @@ debug@2.6.7:
   dependencies:
     ms "2.0.0"
 
-debug@2.6.8, debug@^2.1.0, debug@^2.1.1, debug@^2.2.0, debug@^2.6.0, debug@^2.6.3, debug@^2.6.6:
+debug@2.6.8, debug@^2.1.0, debug@^2.1.1, debug@^2.2.0, debug@^2.6.0, debug@^2.6.3, debug@^2.6.6, debug@^2.6.8:
   version "2.6.8"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
@@ -1979,7 +1974,7 @@ esutils@^2.0.0, esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
-etag@^1.8.0, etag@~1.8.0:
+etag@~1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.0.tgz#6f631aef336d6c46362b51764044ce216be3c051"
 
@@ -2059,7 +2054,7 @@ express@^4.13.3, express@^4.15.2:
     utils-merge "1.0.0"
     vary "~1.1.1"
 
-extend@~3.0.0:
+extend@^3.0.0, extend@~3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
@@ -2224,7 +2219,7 @@ forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
 
-form-data@~2.1.1:
+form-data@^2.1.1, form-data@~2.1.1:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
   dependencies:
@@ -2232,6 +2227,10 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
+formidable@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.1.1.tgz#96b8886f7c3c3508b932d6bd70c4d3a88f35f1a9"
+
 forwarded@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.0.tgz#19ef9874c4ae1c297bcf078fde63a09b66a84363"
@@ -2339,10 +2338,14 @@ glob@^7.0.0, glob@^7.0.3, glob@^7.0.5:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-globals@^9.0.0, globals@^9.14.0:
+globals@^9.14.0:
   version "9.17.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.17.0.tgz#0c0ca696d9b9bb694d2e5470bd37777caad50286"
 
+globals@^9.18.0:
+  version "9.18.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
+
 globby@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
@@ -2652,7 +2655,7 @@ interpret@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.0.3.tgz#cbc35c62eeee73f19ab7b10a801511401afc0f90"
 
-invariant@^2.2.0, invariant@^2.2.1, invariant@^2.2.2:
+invariant@^2.2.1, invariant@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.2.tgz#9e1f56ac0acdb6bf303306f338be3b204ae60360"
   dependencies:
@@ -3117,6 +3120,10 @@ js-tokens@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
 
+js-tokens@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
+
 js-yaml@^3.4.3, js-yaml@^3.5.1, js-yaml@^3.7.0:
   version "3.8.4"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.4.tgz#520b4564f86573ba96662af85a8cafa7b4b5a6f6"
@@ -3189,7 +3196,7 @@ json3@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
 
-json5@^0.5.0:
+json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
@@ -3369,7 +3376,7 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-"lodash@>=3.5 <5", lodash@^4.0.0, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.4, lodash@^4.17.2, lodash@^4.2.0, lodash@^4.3.0:
+"lodash@>=3.5 <5", lodash@^4.0.0, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.4, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
@@ -3459,7 +3466,7 @@ merge@^1.1.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
 
-methods@~1.1.2:
+methods@^1.1.1, methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
 
@@ -3861,7 +3868,7 @@ path-exists@^2.0.0:
   dependencies:
     pinkie-promise "^2.0.0"
 
-path-is-absolute@^1.0.0:
+path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
@@ -4249,7 +4256,7 @@ pretty-format@^18.1.0:
   dependencies:
     ansi-styles "^2.2.1"
 
-private@^0.1.6, private@~0.1.5:
+private@^0.1.6, private@^0.1.7, private@~0.1.5:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
 
@@ -4320,7 +4327,7 @@ q@^1.1.2:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.0.tgz#dd01bac9d06d30e6f219aecb8253ee9ebdc308f1"
 
-qs@6.4.0, qs@~6.4.0:
+qs@6.4.0, qs@^6.1.0, qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
@@ -4554,6 +4561,10 @@ regenerator-runtime@^0.10.0:
   version "0.10.5"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
 
+regenerator-runtime@^0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.0.tgz#7e54fe5b5ccd5d6624ea6255c3473be090b802e1"
+
 regenerator-transform@0.9.8:
   version "0.9.8"
   resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.9.8.tgz#0f88bb2bc03932ddb7b6b7312e68078f01026d6c"
@@ -4883,13 +4894,13 @@ source-list-map@^0.1.4, source-list-map@~0.1.7:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-0.1.8.tgz#c550b2ab5427f6b3f21f5afead88c4f5587b2106"
 
-source-map-support@^0.4.2:
+source-map-support@^0.4.15:
   version "0.4.15"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.15.tgz#03202df65c06d2bd8c7ec2362a193056fef8d3b1"
   dependencies:
     source-map "^0.5.6"
 
-source-map@0.5.x, source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1, source-map@~0.5.3:
+source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1, source-map@~0.5.3:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
@@ -5040,6 +5051,28 @@ style-loader@0.13.1:
   dependencies:
     loader-utils "^0.2.7"
 
+superagent@^3.0.0:
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/superagent/-/superagent-3.5.2.tgz#3361a3971567504c351063abeaae0faa23dbf3f8"
+  dependencies:
+    component-emitter "^1.2.0"
+    cookiejar "^2.0.6"
+    debug "^2.2.0"
+    extend "^3.0.0"
+    form-data "^2.1.1"
+    formidable "^1.1.1"
+    methods "^1.1.1"
+    mime "^1.3.4"
+    qs "^6.1.0"
+    readable-stream "^2.0.5"
+
+supertest@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/supertest/-/supertest-3.0.0.tgz#8d4bb68fd1830ee07033b1c5a5a9a4021c965296"
+  dependencies:
+    methods "~1.1.2"
+    superagent "^3.0.0"
+
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@@ -5169,7 +5202,7 @@ to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
 
-to-fast-properties@^1.0.1:
+to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"