diff --git a/example/package-lock.json b/example/package-lock.json
index 128ec5f..38ec25b 100644
--- a/example/package-lock.json
+++ b/example/package-lock.json
@@ -367,6 +367,12 @@
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@@ -845,6 +851,24 @@
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+      "resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.4.1.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.12.tgz",
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-      "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
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+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
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-      "integrity": "sha1-KAOY5dZkvXQDi28JBRU+borxvCA=",
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+      "dev": true,
+      "requires": {
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@@ -2303,15 +2355,6 @@
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-      "integrity": "sha1-Ce/2xVr3I24TcTWnJXSFi2eG9SQ=",
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+      "resolved": "https://registry.npmjs.org/connect/-/connect-3.7.0.tgz",
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-        "parseurl": "~1.3.2",
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@@ -2697,6 +2723,12 @@
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@@ -3089,6 +3121,12 @@
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@@ -9331,6 +9475,34 @@
       "integrity": "sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI=",
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+    "streamroller": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/streamroller/-/streamroller-3.1.3.tgz",
+      "integrity": "sha512-CphIJyFx2SALGHeINanjFRKQ4l7x2c+rXYJ4BMq0gd+ZK0gi4VT8b+eHe2wi58x4UayBAKx4xtHpXT/ea1cz8w==",
+      "dev": true,
+      "requires": {
+        "date-format": "^4.0.14",
+        "debug": "^4.3.4",
+        "fs-extra": "^8.1.0"
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+      "dependencies": {
+        "debug": {
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+          "dev": true,
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
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+        }
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+    },
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       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -9537,20 +9709,48 @@
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-      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.31.tgz",
-      "integrity": "sha1-jzirlDjhcxXl29izZX6L+yd65Kc=",
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
+      "integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
       "dev": true,
       "requires": {
-        "os-tmpdir": "~1.0.1"
+        "rimraf": "^3.0.0"
+      },
+      "dependencies": {
+        "glob": {
+          "version": "7.2.3",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
+          "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.1.1",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "minimatch": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+          "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+          "dev": true,
+          "requires": {
+            "brace-expansion": "^1.1.7"
+          }
+        },
+        "rimraf": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
+          "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
+          "dev": true,
+          "requires": {
+            "glob": "^7.1.3"
+          }
+        }
       }
     },
-    "to-array": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
-      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA=",
-      "dev": true
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       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz",
@@ -9819,13 +10019,30 @@
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-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
-      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
       "dev": true,
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "~2.1.18"
+        "mime-types": "~2.1.24"
+      },
+      "dependencies": {
+        "mime-db": {
+          "version": "1.52.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+          "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+          "dev": true
+        },
+        "mime-types": {
+          "version": "2.1.35",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+          "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+          "dev": true,
+          "requires": {
+            "mime-db": "1.52.0"
+          }
+        }
       }
     },
     "typedarray": {
@@ -9840,6 +10057,12 @@
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       "dev": true
     },
+    "ua-parser-js": {
+      "version": "0.7.32",
+      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.32.tgz",
+      "integrity": "sha512-f9BESNVhzlhEFf2CHMSj40NWOjYPl1YKYbrvIr/hFTDEmLq7SRbWvm7FcdcpCYT95zrOhC7gZSxjdnnTpBcwVw==",
+      "dev": true
+    },
     "uglify-js": {
       "version": "3.3.27",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.3.27.tgz",
@@ -9957,6 +10180,12 @@
         "imurmurhash": "^0.1.4"
       }
     },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
+      "dev": true
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -10100,16 +10329,6 @@
         "kind-of": "^6.0.2"
       }
     },
-    "useragent": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.3.0.tgz",
-      "integrity": "sha512-4AoH4pxuSvHCjqLO04sU6U/uE65BYza8l/KKBS0b0hnUPWi+cQ2BpeTEwejCSx9SPV5/U03nniDTrWx5NrmKdw==",
-      "dev": true,
-      "requires": {
-        "lru-cache": "4.1.x",
-        "tmp": "0.0.x"
-      }
-    },
     "util": {
       "version": "0.10.3",
       "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
@@ -10209,7 +10428,7 @@
     "void-elements": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-2.0.1.tgz",
-      "integrity": "sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=",
+      "integrity": "sha512-qZKX4RnBzH2ugr8Lxa7x+0V6XD9Sb/ouARtiasEQCHB1EVU4NXtmHsDDrx1dO4ne5fc3J6EW05BP1Dl0z0iung==",
       "dev": true
     },
     "watchpack": {
@@ -11969,12 +12188,6 @@
         "ultron": "1.0.x"
       }
     },
-    "wtf-8": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wtf-8/-/wtf-8-1.0.0.tgz",
-      "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo=",
-      "dev": true
-    },
     "xml2js": {
       "version": "0.4.19",
       "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
@@ -11999,12 +12212,6 @@
       "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=",
       "dev": true
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-    "xmlhttprequest-ssl": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
-      "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0=",
-      "dev": true
-    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
@@ -12253,12 +12460,6 @@
         }
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     },
-    "yeast": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
-      "dev": true
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     "yn": {
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       "resolved": "https://registry.npmjs.org/yn/-/yn-2.0.0.tgz",
diff --git a/example/package.json b/example/package.json
index 830724a..2212d39 100644
--- a/example/package.json
+++ b/example/package.json
@@ -37,7 +37,7 @@
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     "jasmine-core": "~2.99.1",
     "jasmine-spec-reporter": "~4.2.1",
-    "karma": "~1.7.1",
+    "karma": "~6.4.1",
     "karma-chrome-launcher": "~2.2.0",
     "karma-coverage-istanbul-reporter": "~1.4.2",
     "karma-jasmine": "~1.1.1",