diff --git a/packages/web-component-tester/package-lock.json b/packages/web-component-tester/package-lock.json
index 27a5b8a04..2d37d1a83 100644
--- a/packages/web-component-tester/package-lock.json
+++ b/packages/web-component-tester/package-lock.json
@@ -1247,7 +1247,7 @@
 		"after": {
 			"version": "0.8.2",
 			"resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
-			"integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
+			"integrity": "sha512-QbJ0NTQ/I9DI3uSJA4cbexiwQeRAfjPScqIbSjUDd9TOrcg6pTkdgziesOqxBMBzit8vFCTwrP27t13vFOORRA=="
 		},
 		"agent-base": {
 			"version": "4.3.0",
@@ -2028,7 +2028,7 @@
 		"backo2": {
 			"version": "1.0.2",
 			"resolved": "https://registry.npmjs.org/backo2/-/backo2-1.0.2.tgz",
-			"integrity": "sha1-MasayLEpNjRj41s+u2n038+6eUc="
+			"integrity": "sha512-zj6Z6M7Eq+PBZ7PQxl5NT665MvJdAkzp0f60nAJ+sLaSCBPMwVak5ZegFbgVCzFcCJTKFoMizvM5Ld7+JrRJHA=="
 		},
 		"balanced-match": {
 			"version": "1.0.0",
@@ -2088,7 +2088,7 @@
 		"base64-arraybuffer": {
 			"version": "0.1.4",
 			"resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.4.tgz",
-			"integrity": "sha1-mBjHngWbE1X5fgQooBfIOOkLqBI="
+			"integrity": "sha512-a1eIFi4R9ySrbiMuyTGx5e92uRH5tQY6kArNcFaKBUleIoLjdjBg7Zxm3Mqm3Kmkf27HLR/1fnxX9q8GQ7Iavg=="
 		},
 		"base64-js": {
 			"version": "1.3.0",
@@ -2861,7 +2861,7 @@
 		"component-bind": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/component-bind/-/component-bind-1.0.0.tgz",
-			"integrity": "sha1-AMYIq33Nk4l8AAllGx06jh5zu9E="
+			"integrity": "sha512-WZveuKPeKAG9qY+FkYDeADzdHyTYdIboXS59ixDeRJL5ZhxpqUnxSOwop4FQjMsiYm3/Or8cegVbpAHNA7pHxw=="
 		},
 		"component-emitter": {
 			"version": "1.3.0",
@@ -2871,7 +2871,7 @@
 		"component-inherit": {
 			"version": "0.0.3",
 			"resolved": "https://registry.npmjs.org/component-inherit/-/component-inherit-0.0.3.tgz",
-			"integrity": "sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM="
+			"integrity": "sha512-w+LhYREhatpVqTESyGFg3NlP6Iu0kEKUHETY9GoZP/pQyW4mHFZuFWRUCIqVPZ36ueVLtoOEZaAqbCF2RDndaA=="
 		},
 		"compress-commons": {
 			"version": "1.2.2",
@@ -3541,22 +3541,22 @@
 			}
 		},
 		"engine.io": {
-			"version": "3.5.0",
-			"resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.5.0.tgz",
-			"integrity": "sha512-21HlvPUKaitDGE4GXNtQ7PLP0Sz4aWLddMPw2VTyFz1FVZqu/kZsJUO8WNpKuE/OCL7nkfRaOui2ZCJloGznGA==",
+			"version": "3.6.2",
+			"resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.6.2.tgz",
+			"integrity": "sha512-C4JjGQZLY3kWlIDx0BQNKizbrfpb7NahxDztGdN5jrPK2ghmXiNDN+E/t0JzDeNRZxPVaszxEng42Pmj27X/0w==",
 			"requires": {
 				"accepts": "~1.3.4",
 				"base64id": "2.0.0",
 				"cookie": "~0.4.1",
 				"debug": "~4.1.0",
 				"engine.io-parser": "~2.2.0",
-				"ws": "~7.4.2"
+				"ws": "~7.5.10"
 			},
 			"dependencies": {
 				"cookie": {
-					"version": "0.4.1",
-					"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.1.tgz",
-					"integrity": "sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA=="
+					"version": "0.4.2",
+					"resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.2.tgz",
+					"integrity": "sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA=="
 				},
 				"debug": {
 					"version": "4.1.1",
@@ -3574,9 +3574,9 @@
 			}
 		},
 		"engine.io-client": {
-			"version": "3.5.2",
-			"resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.5.2.tgz",
-			"integrity": "sha512-QEqIp+gJ/kMHeUun7f5Vv3bteRHppHH/FMBQX/esFj/fuYfjyUKWGMo3VCvIP/V8bE9KcjHmRZrhIz2Z9oNsDA==",
+			"version": "3.5.4",
+			"resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.5.4.tgz",
+			"integrity": "sha512-ydc8uuMMDxC5KCKNJN3zZKYJk2sgyTuTZQ7Aj1DJSsLKAcizA/PzWivw8fZMIjJVBo2CJOYzntv4FSjY/Lr//g==",
 			"requires": {
 				"component-emitter": "~1.3.0",
 				"component-inherit": "0.0.3",
@@ -3586,7 +3586,7 @@
 				"indexof": "0.0.1",
 				"parseqs": "0.0.6",
 				"parseuri": "0.0.6",
-				"ws": "~7.4.2",
+				"ws": "~7.5.10",
 				"xmlhttprequest-ssl": "~1.6.2",
 				"yeast": "0.1.2"
 			},
@@ -6043,7 +6043,7 @@
 				"isarray": {
 					"version": "2.0.1",
 					"resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-					"integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
+					"integrity": "sha512-c2cu3UxbI+b6kR3fy0nRnAhodsvR9dx7U5+znCOzdj6IfP3upFURTr0Xl5BlQZNKZjEtxrmVyfSdeE3O57smoQ=="
 				}
 			}
 		},
@@ -6055,7 +6055,7 @@
 		"has-cors": {
 			"version": "1.1.0",
 			"resolved": "https://registry.npmjs.org/has-cors/-/has-cors-1.1.0.tgz",
-			"integrity": "sha1-XkdHk/fqmEPRu5nCPu9J/xJv/zk="
+			"integrity": "sha512-g5VNKdkFuUuVCP9gYfDJHjK2nqdQJ7aDLTnycnc2+RvsOQbuLdF5pm7vuE5J76SEBIQjs4kQY/BWq74JUmjbXA=="
 		},
 		"has-flag": {
 			"version": "3.0.0",
@@ -6404,7 +6404,7 @@
 		"indexof": {
 			"version": "0.0.1",
 			"resolved": "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz",
-			"integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10="
+			"integrity": "sha512-i0G7hLJ1z0DE8dsqJa2rycj9dBmNKgXBvotXtZYXakU9oivfB9Uj2ZBC27qqef2U58/ZLwalxa1X/RDCdkHtVg=="
 		},
 		"inflight": {
 			"version": "1.0.6",
@@ -10092,15 +10092,15 @@
 			}
 		},
 		"socket.io": {
-			"version": "2.4.0",
-			"resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.4.0.tgz",
-			"integrity": "sha512-9UPJ1UTvKayuQfVv2IQ3k7tCQC/fboDyIK62i99dAQIyHKaBsNdTpwHLgKJ6guRWxRtC9H+138UwpaGuQO9uWQ==",
+			"version": "2.5.1",
+			"resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.5.1.tgz",
+			"integrity": "sha512-eaTE4tBKRD6RFoetquMbxgvcpvoDtRyIlkIMI/SMK2bsKvbENTsDeeu4GJ/z9c90yOWxB7b/eC+yKLPbHnH6bA==",
 			"requires": {
 				"debug": "~4.1.0",
-				"engine.io": "~3.5.0",
+				"engine.io": "~3.6.0",
 				"has-binary2": "~1.0.2",
 				"socket.io-adapter": "~1.1.0",
-				"socket.io-client": "2.4.0",
+				"socket.io-client": "2.5.0",
 				"socket.io-parser": "~3.4.0"
 			},
 			"dependencies": {
@@ -10125,9 +10125,9 @@
 			"integrity": "sha512-WzZRUj1kUjrTIrUKpZLEzFZ1OLj5FwLlAFQs9kuZJzJi5DKdU7FsWc36SNmA8iDOtwBQyT8FkrriRM8vXLYz8g=="
 		},
 		"socket.io-client": {
-			"version": "2.4.0",
-			"resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.4.0.tgz",
-			"integrity": "sha512-M6xhnKQHuuZd4Ba9vltCLT9oa+YvTsP8j9NcEiLElfIg8KeYPyhWOes6x4t+LTAC8enQbE/995AdTem2uNyKKQ==",
+			"version": "2.5.0",
+			"resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.5.0.tgz",
+			"integrity": "sha512-lOO9clmdgssDykiOmVQQitwBAF3I6mYcQAo7hQ7AM6Ny5X7fp8hIJ3HcQs3Rjz4SoggoxA1OgrQyY8EgTbcPYw==",
 			"requires": {
 				"backo2": "1.0.2",
 				"component-bind": "1.0.0",
@@ -10153,12 +10153,12 @@
 				"isarray": {
 					"version": "2.0.1",
 					"resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-					"integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
+					"integrity": "sha512-c2cu3UxbI+b6kR3fy0nRnAhodsvR9dx7U5+znCOzdj6IfP3upFURTr0Xl5BlQZNKZjEtxrmVyfSdeE3O57smoQ=="
 				},
 				"socket.io-parser": {
-					"version": "3.3.2",
-					"resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.2.tgz",
-					"integrity": "sha512-FJvDBuOALxdCI9qwRrO/Rfp9yfndRtc1jSgVgV8FDraihmSP/MLGD5PEuJrNfjALvcQ+vMDM/33AWOYP/JSjDg==",
+					"version": "3.3.4",
+					"resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.4.tgz",
+					"integrity": "sha512-z/pFQB3x+EZldRRzORYW1vwVO8m/3ILkswtnpoeU6Ve3cbMWkmHEWDAVJn4QJtchiiFTo5j7UG2QvwxvaA9vow==",
 					"requires": {
 						"component-emitter": "~1.3.0",
 						"debug": "~3.1.0",
@@ -10168,9 +10168,9 @@
 			}
 		},
 		"socket.io-parser": {
-			"version": "3.4.1",
-			"resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
-			"integrity": "sha512-11hMgzL+WCLWf1uFtHSNvliI++tcRUWdoeYuwIl+Axvwy9z2gQM+7nJyN3STj1tLj5JyIUH8/gpDGxzAlDdi0A==",
+			"version": "3.4.3",
+			"resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.3.tgz",
+			"integrity": "sha512-1rE4dZN3kCI/E5wixd393hmbqa78vVpkKmnEJhLeWoS/C5hbFYAbcSfnWoaVH43u9ToUVtzKjguxEZq+1XZfCQ==",
 			"requires": {
 				"component-emitter": "1.2.1",
 				"debug": "~4.1.0",
@@ -10180,7 +10180,7 @@
 				"component-emitter": {
 					"version": "1.2.1",
 					"resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-					"integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
+					"integrity": "sha512-jPatnhd33viNplKjqXKRkGU345p263OIWzDL2wH3LGIGp5Kojo+uXizHmOADRvhGFFTnJqX3jBAKP6vvmSDKcA=="
 				},
 				"debug": {
 					"version": "4.1.1",
@@ -10193,7 +10193,7 @@
 				"isarray": {
 					"version": "2.0.1",
 					"resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-					"integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
+					"integrity": "sha512-c2cu3UxbI+b6kR3fy0nRnAhodsvR9dx7U5+znCOzdj6IfP3upFURTr0Xl5BlQZNKZjEtxrmVyfSdeE3O57smoQ=="
 				},
 				"ms": {
 					"version": "2.1.3",
@@ -10774,7 +10774,7 @@
 		"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="
+			"integrity": "sha512-LhVdShQD/4Mk4zXNroIQZJC+Ap3zgLcDuwEdcmLv9CCO73NWockQDwyUnW/m8VX/EElfL6FcYx7EeutN4HJA6A=="
 		},
 		"to-buffer": {
 			"version": "1.1.1",
@@ -11762,9 +11762,9 @@
 			}
 		},
 		"ws": {
-			"version": "7.4.6",
-			"resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-			"integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
+			"version": "7.5.10",
+			"resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
+			"integrity": "sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ=="
 		},
 		"xdg-basedir": {
 			"version": "3.0.0",
@@ -11851,7 +11851,7 @@
 		"yeast": {
 			"version": "0.1.2",
 			"resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-			"integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
+			"integrity": "sha512-8HFIh676uyGYP6wP13R/j6OJ/1HwJ46snpvzE7aHAN3Ryqh2yX6Xox2B4CUmTwwOIzlG3Bs7ocsP5dZH/R1Qbg=="
 		},
 		"zip-stream": {
 			"version": "1.2.0",