diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..1521c8b
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1 @@
+dist
diff --git a/Makefile b/Makefile
index df45454..0c752a0 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ endif
 WEBPACK=npx webpack
 WEBPACK_DEV_SERVER=npx webpack-dev-server
 
-WASM_FILES=src/waforth.wasm tests/benchmarks/sieve-vanilla/sieve-vanilla.wasm
+WASM_FILES=src/waforth.wasm tests/benchmarks/sieve-vanilla.wasm
 
 all: $(WASM_FILES)
 	$(WEBPACK) --mode=production
@@ -20,7 +20,7 @@ src/waforth.wasm: src/waforth.wat dist
 	racket -f $< > src/waforth.wat.tmp
 	$(WAT2WASM) $(WAT2WASM_FLAGS) -o $@ src/waforth.wat.tmp
 
-tests/benchmarks/sieve-vanilla/sieve-vanilla.wasm: tests/benchmarks/sieve-vanilla/sieve-vanilla.wat
+tests/benchmarks/sieve-vanilla.wasm: tests/benchmarks/sieve-vanilla.wat
 	$(WAT2WASM) $(WAT2WASM_FLAGS) -o $@ $<
 
 dist:
diff --git a/package.json b/package.json
index 522e088..dcdcc66 100644
--- a/package.json
+++ b/package.json
@@ -1,18 +1,22 @@
 {
   "private": true,
   "dependencies": {
+    "immutability-helper": "^2.7.0",
     "jq-console": "^2.13.2",
     "jquery": "^3.3.1",
+    "preact": "^8.2.9",
     "promise-polyfill": "^7.1.2"
   },
   "devDependencies": {
     "babel-core": "^6.26.3",
     "babel-loader": "^7.1.4",
+    "babel-plugin-transform-react-jsx": "^6.24.1",
     "babel-preset-env": "^1.7.0",
     "bin-loader": "^0.1.0",
     "chai": "^4.1.2",
     "css-loader": "^0.28.11",
     "eslint": "4.13.1",
+    "eslint-plugin-react": "^7.8.2",
     "html-webpack-plugin": "^3.2.0",
     "mocha": "^5.2.0",
     "style-loader": "^0.21.0",
diff --git a/tests/benchmarks/.eslintrc b/tests/benchmarks/.eslintrc
new file mode 100644
index 0000000..acb1395
--- /dev/null
+++ b/tests/benchmarks/.eslintrc
@@ -0,0 +1,5 @@
+extends:
+  - plugin:react/recommended
+rules:
+  react/react-in-jsx-scope: 0
+  no-unused-vars: [2, { "varsIgnorePattern": "^h$" }]
diff --git a/tests/benchmarks/index.css b/tests/benchmarks/index.css
new file mode 100644
index 0000000..40a7a34
--- /dev/null
+++ b/tests/benchmarks/index.css
@@ -0,0 +1,16 @@
+table {
+  text-align: center;
+  border-collapse: collapse;
+}
+
+table thead th {
+  min-width: 4em;
+  border-bottom: thin solid grey;
+}
+
+pre.output {
+  margin: 0;
+  font-size: .5em;
+  text-align: left;
+}
+
diff --git a/tests/benchmarks/index.js b/tests/benchmarks/index.js
new file mode 100644
index 0000000..40f18f6
--- /dev/null
+++ b/tests/benchmarks/index.js
@@ -0,0 +1,161 @@
+import WAForth from "../../src/shell/WAForth";
+import sieve from "../../src/shell/sieve";
+import sieveVanillaModule from "./sieve-vanilla.wasm";
+import { Component, render, h } from "preact";
+import update from "immutability-helper";
+import "./index.css";
+
+////////////////////////////////////////////////////////////////////////////////
+// Initial setup
+////////////////////////////////////////////////////////////////////////////////
+
+const setup = [];
+
+const forth = new WAForth();
+let outputBuffer = [];
+forth.onEmit = c => {
+  outputBuffer.push(String.fromCharCode(c));
+};
+setup.push(
+  forth.start().then(() => {
+    forth.run(sieve);
+  })
+);
+
+let sieveVanilla;
+setup.push(
+  WebAssembly.instantiate(sieveVanillaModule, {
+    js: {
+      print: x => console.log(x)
+    }
+  }).then(instance => {
+    sieveVanilla = instance.instance.exports.sieve;
+  })
+);
+
+////////////////////////////////////////////////////////////////////////////////
+
+const ITERATIONS = 5;
+const LIMIT = 50000000;
+const benchmarks = [
+  {
+    name: "sieve",
+    fn: () => {
+      outputBuffer = [];
+      forth.run(`${LIMIT} sieve`);
+      return outputBuffer.join("");
+    }
+  },
+  {
+    name: "sieve-vanilla",
+    fn: () => {
+      return sieveVanilla(LIMIT);
+    }
+  }
+];
+
+////////////////////////////////////////////////////////////////////////////////
+
+const iterations = Array.from(Array(ITERATIONS).keys());
+
+class Benchmarks extends Component {
+  constructor(props) {
+    super(props);
+    const results = {};
+    benchmarks.forEach(({ name }) => (results[name] = []));
+    this.state = {
+      initialized: false,
+      done: false,
+      results
+    };
+  }
+
+  componentDidMount() {
+    Promise.all(setup).then(() => {
+      this.setState({ initialized: true });
+      let benchmarkIndex = 0;
+      let benchmarkIteration = 0;
+      const runNext = () => {
+        const t1 = performance.now();
+        const output = benchmarks[benchmarkIndex].fn();
+        const t2 = performance.now();
+        this.setState({
+          results: update(this.state.results, {
+            [benchmarks[benchmarkIndex].name]: {
+              [benchmarkIteration]: {
+                $set: { time: (t2 - t1) / 1000.0, output }
+              }
+            }
+          })
+        });
+        if (benchmarkIteration < ITERATIONS - 1) {
+          benchmarkIteration += 1;
+          window.setTimeout(runNext, 500);
+        } else if (benchmarkIndex < benchmarks.length - 1) {
+          benchmarkIndex += 1;
+          benchmarkIteration = 0;
+          window.setTimeout(runNext, 500);
+        } else {
+          this.setState({ done: true });
+        }
+      };
+      window.setTimeout(runNext, 500);
+    });
+  }
+
+  render() {
+    const { initialized, results } = this.state;
+    if (!initialized) {
+      return <div>Loading</div>;
+    }
+    return (
+      <div>
+        <table>
+          <thead>
+            <tr>
+              <th />
+              {iterations.map(i => <th key={i}>{i}</th>)}
+              <th>Avg</th>
+            </tr>
+          </thead>
+          <tbody>
+            {benchmarks.map(({ name }) => {
+              const benchmark = results[name];
+              const sum = benchmark.reduce((acc, { time }) => acc + time, 0);
+              return [
+                <tr key={`${name}-time`}>
+                  <th>{name}</th>
+                  {iterations.map(i => (
+                    <td key={i}>
+                      {benchmark[i] == null ? null : (
+                        <span>{benchmark[i].time.toFixed(2)}s</span>
+                      )}
+                    </td>
+                  ))}
+                  <th>
+                    {benchmark.length === ITERATIONS ? (
+                      <span>{(sum / benchmark.length).toFixed(2)}s</span>
+                    ) : (
+                      "⌛"
+                    )}
+                  </th>
+                </tr>,
+                <tr key={`${name}-output`}>
+                  <th />
+                  {iterations.map(i => (
+                    <td key={i}>
+                      <pre className="output">
+                        {benchmark[i] == null ? null : benchmark[i].output}
+                      </pre>
+                    </td>
+                  ))}
+                </tr>
+              ];
+            })}
+          </tbody>
+        </table>
+      </div>
+    );
+  }
+}
+render(<Benchmarks />, document.body);
diff --git a/tests/benchmarks/sieve-vanilla/sieve-vanilla.wat b/tests/benchmarks/sieve-vanilla.wat
similarity index 100%
rename from tests/benchmarks/sieve-vanilla/sieve-vanilla.wat
rename to tests/benchmarks/sieve-vanilla.wat
diff --git a/tests/benchmarks/sieve-vanilla/index.html b/tests/benchmarks/sieve-vanilla/index.html
deleted file mode 100644
index 2469aff..0000000
--- a/tests/benchmarks/sieve-vanilla/index.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Sieve (Vanilla)</title>
-  </head>
-  <body>
-    <script src="./index.js"></script>
-  </body>
-</html>
diff --git a/tests/benchmarks/sieve-vanilla/index.js b/tests/benchmarks/sieve-vanilla/index.js
deleted file mode 100644
index dc1ae43..0000000
--- a/tests/benchmarks/sieve-vanilla/index.js
+++ /dev/null
@@ -1,12 +0,0 @@
-fetch("sieve-vanilla.wasm")
-  .then(resp => resp.arrayBuffer())
-  .then(module =>
-    WebAssembly.instantiate(module, {
-      js: {
-        print: x => console.log(x)
-      }
-    })
-  )
-  .then(instance => {
-    window.sieve = instance.instance.exports.sieve;
-  });
diff --git a/tests/benchmarks/sieve/index.html b/tests/benchmarks/sieve/index.html
deleted file mode 100644
index 486da04..0000000
--- a/tests/benchmarks/sieve/index.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title></title>
-  </head>
-  <body>
-    <script src="./index.js"></script>
-  </body>
-</html>
diff --git a/tests/benchmarks/sieve/index.js b/tests/benchmarks/sieve/index.js
deleted file mode 100644
index 94f7520..0000000
--- a/tests/benchmarks/sieve/index.js
+++ /dev/null
@@ -1,42 +0,0 @@
-import WAForth from "../../../src/shell/WAForth";
-import sieve from "../../../src/shell/sieve";
-
-const ITERATIONS = 3;
-const LIMIT = 50000000;
-
-const forth = new WAForth();
-let outputBuffer = [];
-forth.onEmit = c => {
-  outputBuffer.push(String.fromCharCode(c));
-};
-document.body.innerHTML = "Loading...";
-forth.start().then(
-  () => {
-    document.body.innerHTML = "<div>Running...</div>";
-    forth.run(sieve);
-    let i = 0;
-    const run = () => {
-      if (i < ITERATIONS) {
-        outputBuffer = [];
-        const t1 = performance.now();
-        outputBuffer = [77, 88];
-        forth.run(`${LIMIT} sieve`);
-        const t2 = performance.now();
-        document.body.innerHTML =
-          document.body.innerHTML +
-          `<div><pre style='display: inline-block; margin: 0; margin-right: 1rem'>${outputBuffer.join(
-            ""
-          )}</pre><span>${(t2 - t1) / 1000.0}</span></div>`;
-        i += 1;
-        window.setTimeout(run, 0);
-      } else {
-        document.body.innerHTML = document.body.innerHTML + "<div>Done</div>";
-      }
-    };
-    window.setTimeout(run, 10);
-  },
-  err => {
-    console.error(err);
-    document.body.innerHTML = "Error";
-  }
-);
diff --git a/webpack.config.js b/webpack.config.js
index c07f054..8c90461 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -22,7 +22,8 @@ function config({ entry, outputDir, title, template, mode }) {
           use: {
             loader: "babel-loader",
             options: {
-              presets: ["es2015"]
+              presets: ["es2015"],
+              plugins: [["transform-react-jsx", { pragma: "h" }]]
             }
           }
         },
@@ -80,9 +81,9 @@ module.exports = (env, argv) => [
     mode: argv.mode
   }),
   config({
-    title: "Sieve Benchmark",
-    entry: "./tests/benchmarks/sieve/index.js",
-    outputDir: "sieve",
+    title: "Benchmarks",
+    entry: "./tests/benchmarks/index.js",
+    outputDir: "benchmarks",
     mode: argv.mode
   })
 ];
diff --git a/yarn.lock b/yarn.lock
index 8fb2fb6..3f291ae 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -332,6 +332,10 @@ arrify@^1.0.0, arrify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
 
+asap@~2.0.3:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
+
 asn1.js@^4.0.0:
   version "4.10.1"
   resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-4.10.1.tgz#b9c2bf5805f1e64aadeed6df3a2bfafb5a73f5a0"
@@ -452,6 +456,14 @@ babel-helper-builder-binary-assignment-operator-visitor@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
+babel-helper-builder-react-jsx@^6.24.1:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-helper-builder-react-jsx/-/babel-helper-builder-react-jsx-6.26.0.tgz#39ff8313b75c8b65dceff1f31d383e0ff2a408a0"
+  dependencies:
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    esutils "^2.0.2"
+
 babel-helper-call-delegate@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-call-delegate/-/babel-helper-call-delegate-6.24.1.tgz#ece6aacddc76e41c3461f88bfc575bd0daa2df8d"
@@ -610,6 +622,10 @@ babel-plugin-syntax-flow@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz#4c3ab20a2af26aa20cd25995c398c4eb70310c8d"
 
+babel-plugin-syntax-jsx@^6.8.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
+
 babel-plugin-syntax-object-rest-spread@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
@@ -858,6 +874,14 @@ babel-plugin-transform-object-rest-spread@^6.22.0:
     babel-plugin-syntax-object-rest-spread "^6.8.0"
     babel-runtime "^6.26.0"
 
+babel-plugin-transform-react-jsx@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-react-jsx/-/babel-plugin-transform-react-jsx-6.24.1.tgz#840a028e7df460dfc3a2d29f0c0d91f6376e66a3"
+  dependencies:
+    babel-helper-builder-react-jsx "^6.24.1"
+    babel-plugin-syntax-jsx "^6.8.0"
+    babel-runtime "^6.22.0"
+
 babel-plugin-transform-regenerator@^6.22.0, babel-plugin-transform-regenerator@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz#e0703696fbde27f0a3efcacf8b4dca2f7b3a8f2f"
@@ -1680,6 +1704,10 @@ copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
 
+core-js@^1.0.0:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+
 core-js@^2.4.0, core-js@^2.5.0:
   version "2.5.6"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.6.tgz#0fe6d45bf3cac3ac364a9d72de7576f4eb221b9d"
@@ -2163,6 +2191,12 @@ encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
 
+encoding@^0.1.11:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
+  dependencies:
+    iconv-lite "~0.4.13"
+
 end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
@@ -2253,6 +2287,15 @@ escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+eslint-plugin-react@^7.8.2:
+  version "7.8.2"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-react/-/eslint-plugin-react-7.8.2.tgz#e95c9c47fece55d2303d1a67c9d01b930b88a51d"
+  dependencies:
+    doctrine "^2.0.2"
+    has "^1.0.1"
+    jsx-ast-utils "^2.0.1"
+    prop-types "^15.6.0"
+
 eslint-scope@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
@@ -2526,6 +2569,18 @@ faye-websocket@~0.11.0:
   dependencies:
     websocket-driver ">=0.5.1"
 
+fbjs@^0.8.16:
+  version "0.8.16"
+  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.16.tgz#5e67432f550dc41b572bf55847b8aca64e5337db"
+  dependencies:
+    core-js "^1.0.0"
+    isomorphic-fetch "^2.1.1"
+    loose-envify "^1.0.0"
+    object-assign "^4.1.0"
+    promise "^7.1.1"
+    setimmediate "^1.0.5"
+    ua-parser-js "^0.7.9"
+
 figures@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
@@ -3130,7 +3185,7 @@ iconv-lite@0.4.19:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
 
-iconv-lite@^0.4.17, iconv-lite@^0.4.4:
+iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.23"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
   dependencies:
@@ -3164,6 +3219,12 @@ ignore@^3.3.3, ignore@^3.3.5:
   version "3.3.8"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.8.tgz#3f8e9c35d38708a3a7e0e9abb6c73e7ee7707b2b"
 
+immutability-helper@^2.7.0:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/immutability-helper/-/immutability-helper-2.7.0.tgz#4ea9916cc8f45142ec3e3f0fce75fa5d66fa1b38"
+  dependencies:
+    invariant "^2.2.0"
+
 import-local@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/import-local/-/import-local-1.0.0.tgz#5e4ffdc03f4fe6c009c6729beb29631c2f8227bc"
@@ -3266,7 +3327,7 @@ into-stream@^3.1.0:
     from2 "^2.1.1"
     p-is-promise "^1.1.0"
 
-invariant@^2.2.2:
+invariant@^2.2.0, invariant@^2.2.2:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
   dependencies:
@@ -3508,7 +3569,7 @@ is-scoped@^1.0.0:
   dependencies:
     scoped-regex "^1.0.0"
 
-is-stream@^1.0.0, is-stream@^1.1.0:
+is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
@@ -3560,6 +3621,13 @@ isobject@^3.0.0, isobject@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
 
+isomorphic-fetch@^2.1.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
+  dependencies:
+    node-fetch "^1.0.1"
+    whatwg-fetch ">=0.10.0"
+
 istextorbinary@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/istextorbinary/-/istextorbinary-2.2.1.tgz#a5231a08ef6dd22b268d0895084cf8d58b5bec53"
@@ -3677,6 +3745,12 @@ json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
+jsx-ast-utils@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-2.0.1.tgz#e801b1b39985e20fffc87b40e3748080e2dcac7f"
+  dependencies:
+    array-includes "^3.0.3"
+
 keyv@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/keyv/-/keyv-3.0.0.tgz#44923ba39e68b12a7cec7df6c3268c031f2ef373"
@@ -3868,7 +3942,7 @@ long@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/long/-/long-3.2.0.tgz#d821b7138ca1cb581c172990ef14db200b5c474b"
 
-loose-envify@^1.0.0:
+loose-envify@^1.0.0, loose-envify@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
   dependencies:
@@ -4257,6 +4331,13 @@ node-dir@0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/node-dir/-/node-dir-0.1.8.tgz#55fb8deb699070707fb67f91a460f0448294c77d"
 
+node-fetch@^1.0.1:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
 node-forge@0.7.5:
   version "0.7.5"
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.7.5.tgz#6c152c345ce11c52f465c2abd957e8639cd674df"
@@ -5009,6 +5090,10 @@ postcss@^6.0.1:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
+preact@^8.2.9:
+  version "8.2.9"
+  resolved "https://registry.yarnpkg.com/preact/-/preact-8.2.9.tgz#813ba9dd45e5d97c5ea0d6c86d375b3be711cc40"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -5064,6 +5149,20 @@ promise-polyfill@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/promise-polyfill/-/promise-polyfill-7.1.2.tgz#ab05301d8c28536301622d69227632269a70ca3b"
 
+promise@^7.1.1:
+  version "7.3.1"
+  resolved "https://registry.yarnpkg.com/promise/-/promise-7.3.1.tgz#064b72602b18f90f29192b8b1bc418ffd1ebd3bf"
+  dependencies:
+    asap "~2.0.3"
+
+prop-types@^15.6.0:
+  version "15.6.1"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.1.tgz#36644453564255ddda391191fb3a125cbdf654ca"
+  dependencies:
+    fbjs "^0.8.16"
+    loose-envify "^1.3.1"
+    object-assign "^4.1.1"
+
 proxy-addr@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.3.tgz#355f262505a621646b3130a728eb647e22055341"
@@ -5643,7 +5742,7 @@ set-value@^2.0.0:
     is-plain-object "^2.0.3"
     split-string "^3.0.1"
 
-setimmediate@^1.0.4:
+setimmediate@^1.0.4, setimmediate@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
 
@@ -6162,6 +6261,10 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
+ua-parser-js@^0.7.9:
+  version "0.7.18"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.18.tgz#a7bfd92f56edfb117083b69e31d2aa8882d4b1ed"
+
 uglify-es@^3.3.4:
   version "3.3.9"
   resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.9.tgz#0c1c4f0700bed8dbc124cdb304d2592ca203e677"
@@ -6535,6 +6638,10 @@ websocket-extensions@>=0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.3.tgz#5d2ff22977003ec687a4b87073dfbbac146ccf29"
 
+whatwg-fetch@>=0.10.0:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz#dde6a5df315f9d39991aa17621853d720b85566f"
+
 whet.extend@~0.9.9:
   version "0.9.9"
   resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"