diff --git a/examples/yarn.lock b/examples/yarn.lock
index 3fbb4e7..4cc1a0d 100644
--- a/examples/yarn.lock
+++ b/examples/yarn.lock
@@ -364,11 +364,11 @@ babel-messages@^6.23.0:
 
 babel-plugin-syntax-flow@^6.18.0:
   version "6.18.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz#4c3ab20a2af26aa20cd25995c398c4eb70310c8d"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz#4c3ab20a2af26aa20cd25995c398c4eb70310c8d"
 
 babel-plugin-syntax-jsx@^6.3.13, babel-plugin-syntax-jsx@^6.8.0:
   version "6.18.0"
-  resolved "http://registry.npmjs.org/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
+  resolved "https://registry.npmjs.org/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
 
 babel-plugin-transform-flow-strip-types@^6.22.0:
   version "6.22.0"
@@ -502,9 +502,9 @@ batch@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
 
-big.js@^3.1.3:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.2.0.tgz#a5fc298b81b9e0dca2e458824784b65c52ba588e"
+big.js@^5.2.2:
+  version "5.2.2"
+  resolved "https://registry.yarnpkg.com/big.js/-/big.js-5.2.2.tgz#65f0af382f578bcdc742bd9c281e9cb2d7768328"
 
 binary-extensions@^1.0.0:
   version "1.12.0"
@@ -572,7 +572,7 @@ brorand@^1.0.1:
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
+  resolved "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
   dependencies:
     buffer-xor "^1.0.3"
     cipher-base "^1.0.0"
@@ -600,7 +600,7 @@ browserify-des@^1.0.0:
 
 browserify-rsa@^4.0.0:
   version "4.0.1"
-  resolved "http://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
+  resolved "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
   dependencies:
     bn.js "^4.1.0"
     randombytes "^2.0.1"
@@ -637,7 +637,7 @@ buffer-xor@^1.0.3:
 
 buffer@^4.3.0:
   version "4.9.1"
-  resolved "http://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
+  resolved "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
   dependencies:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
@@ -689,7 +689,7 @@ camelcase@^4.1.0:
 
 chalk@^1.1.3:
   version "1.1.3"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
     ansi-styles "^2.2.1"
     escape-string-regexp "^1.0.2"
@@ -894,7 +894,7 @@ create-ecdh@^4.0.0:
 
 create-hash@^1.1.0, create-hash@^1.1.2:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
+  resolved "https://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
   dependencies:
     cipher-base "^1.0.1"
     inherits "^2.0.1"
@@ -904,7 +904,7 @@ create-hash@^1.1.0, create-hash@^1.1.2:
 
 create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
   version "1.1.7"
-  resolved "http://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz#69170c78b3ab957147b2b8b04572e47ead2243ff"
+  resolved "https://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz#69170c78b3ab957147b2b8b04572e47ead2243ff"
   dependencies:
     cipher-base "^1.0.3"
     create-hash "^1.1.0"
@@ -1088,7 +1088,7 @@ detect-node@^2.0.3:
 
 diffie-hellman@^5.0.0:
   version "5.0.3"
-  resolved "http://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz#40e8ee98f55a2149607146921c63e1ae5f3d2875"
+  resolved "https://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz#40e8ee98f55a2149607146921c63e1ae5f3d2875"
   dependencies:
     bn.js "^4.1.0"
     miller-rabin "^4.0.0"
@@ -1144,9 +1144,9 @@ elliptic@^6.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.0"
 
-emojis-list@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
+emojis-list@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-3.0.0.tgz#5570662046ad29e2e916e71aae260abdff4f6a78"
 
 encodeurl@~1.0.2:
   version "1.0.2"
@@ -1252,7 +1252,7 @@ expand-brackets@^2.1.4:
 
 express@^4.16.2, express@^4.16.3:
   version "4.16.3"
-  resolved "http://registry.npmjs.org/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
+  resolved "https://registry.npmjs.org/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
   dependencies:
     accepts "~1.3.5"
     array-flatten "1.1.1"
@@ -1607,7 +1607,7 @@ http-errors@1.6.2:
 
 http-errors@~1.6.2:
   version "1.6.3"
-  resolved "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  resolved "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
   dependencies:
     depd "~1.1.2"
     inherits "2.0.3"
@@ -1620,7 +1620,7 @@ http-parser-js@>=0.4.0:
 
 http-proxy-middleware@~0.18.0:
   version "0.18.0"
-  resolved "http://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
+  resolved "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
   dependencies:
     http-proxy "^1.16.2"
     is-glob "^4.0.0"
@@ -1922,10 +1922,16 @@ 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@^0.5.1:
+json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
+json5@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-1.0.1.tgz#779fb0018604fa854eacbf6252180d83543e3dbe"
+  dependencies:
+    minimist "^1.2.0"
+
 killable@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/killable/-/killable-1.0.1.tgz#4c8ce441187a061c7474fb87ca08e2a638194892"
@@ -1961,12 +1967,12 @@ loader-runner@^2.3.0:
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.1.tgz#026f12fe7c3115992896ac02ba022ba92971b979"
 
 loader-utils@^1.0.2, loader-utils@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.4.1.tgz#278ad7006660bccc4d2c0c1578e17c5c78d5c0e0"
   dependencies:
-    big.js "^3.1.3"
-    emojis-list "^2.0.0"
-    json5 "^0.5.0"
+    big.js "^5.2.2"
+    emojis-list "^3.0.0"
+    json5 "^1.0.1"
 
 locate-path@^2.0.0:
   version "2.0.0"
@@ -2130,11 +2136,11 @@ minimatch@^3.0.4:
 
 minimist@0.0.8:
   version "0.0.8"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
 minimist@^1.2.0:
-  version "1.2.0"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.7.tgz#daa1c4d91f507390437c6a8bc01078e7000c4d18"
 
 minipass@^2.2.1, minipass@^2.3.3:
   version "2.3.4"
@@ -2173,7 +2179,7 @@ mixin-deep@^1.2.0:
 
 mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
   version "0.5.1"
-  resolved "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  resolved "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
@@ -2430,7 +2436,7 @@ p-finally@^1.0.0:
 
 p-is-promise@^1.1.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/p-is-promise/-/p-is-promise-1.1.0.tgz#9c9456989e9f6588017b0434d56097675c3da05e"
+  resolved "https://registry.npmjs.org/p-is-promise/-/p-is-promise-1.1.0.tgz#9c9456989e9f6588017b0434d56097675c3da05e"
 
 p-limit@^1.1.0:
   version "1.3.0"
@@ -2482,7 +2488,7 @@ parallel-transform@^1.1.0:
 
 parse-asn1@^5.0.0:
   version "5.1.1"
-  resolved "http://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
+  resolved "https://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
   dependencies:
     asn1.js "^4.0.0"
     browserify-aes "^1.0.0"
@@ -2657,7 +2663,7 @@ pseudomap@^1.0.2:
 
 public-encrypt@^4.0.0:
   version "4.0.2"
-  resolved "http://registry.npmjs.org/public-encrypt/-/public-encrypt-4.0.2.tgz#46eb9107206bf73489f8b85b69d91334c6610994"
+  resolved "https://registry.npmjs.org/public-encrypt/-/public-encrypt-4.0.2.tgz#46eb9107206bf73489f8b85b69d91334c6610994"
   dependencies:
     bn.js "^4.1.0"
     browserify-rsa "^4.0.0"
@@ -2763,7 +2769,7 @@ react@^16.5.2:
 
 "readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.9, readable-stream@^2.3.3, readable-stream@^2.3.6:
   version "2.3.6"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -3017,7 +3023,7 @@ setprototypeof@1.1.0:
 
 sha.js@^2.4.0, sha.js@^2.4.8:
   version "2.4.11"
-  resolved "http://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
+  resolved "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
   dependencies:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
@@ -3618,7 +3624,7 @@ worker-farm@^1.5.2:
 
 wrap-ansi@^2.0.0:
   version "2.1.0"
-  resolved "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
   dependencies:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"