diff --git a/package-lock.json b/package-lock.json
index 7201e5a..ef5794c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,8 @@
       "license": "MIT",
       "dependencies": {
         "@apiglobal/typedrequest": "^1.0.65",
-        "@apiglobal/typedrequest-interfaces": "^1.0.15"
+        "@apiglobal/typedrequest-interfaces": "^1.0.15",
+        "broadcast-channel": "^4.9.0"
       },
       "devDependencies": {
         "@gitzone/tsbuild": "^2.1.29",
@@ -1797,7 +1798,6 @@
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       "resolved": "https://verdaccio.lossless.one/@babel%2fruntime/-/runtime-7.16.7.tgz",
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-      "dev": true,
       "license": "MIT",
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@@ -4200,7 +4200,6 @@
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-      "dev": true,
       "license": "MIT"
     },
     "node_modules/base": {
@@ -4276,6 +4275,15 @@
         "tweetnacl": "^0.14.3"
       }
     },
+    "node_modules/big-integer": {
+      "version": "1.6.51",
+      "resolved": "https://verdaccio.lossless.one/big-integer/-/big-integer-1.6.51.tgz",
+      "integrity": "sha512-GPEid2Y9QU1Exl1rpO9B2IPJGHPSupF5GnVIP0blYvNOMer2bTvSWs1jGOUg04hTmu67nmLsQ9TBo1puaotBHg==",
+      "license": "Unlicense",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
     "node_modules/binary-extensions": {
       "version": "1.13.1",
       "resolved": "https://verdaccio.lossless.one/binary-extensions/-/binary-extensions-1.13.1.tgz",
@@ -4405,7 +4413,6 @@
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "balanced-match": "^1.0.0",
@@ -4461,6 +4468,22 @@
         "xtend": "~4.0.1"
       }
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+    "node_modules/broadcast-channel": {
+      "version": "4.9.0",
+      "resolved": "https://verdaccio.lossless.one/broadcast-channel/-/broadcast-channel-4.9.0.tgz",
+      "integrity": "sha512-xWzFb3wrOZGJF2kOSs2D3KvHXdLDMVb+WypEIoNvwblcHgUBydVy65pDJ9RS4WN9Kyvs0UVQuCCzfKme0G6Qjw==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.16.0",
+        "detect-node": "^2.1.0",
+        "microseconds": "0.2.0",
+        "nano-time": "1.0.0",
+        "oblivious-set": "1.0.0",
+        "p-queue": "6.6.2",
+        "rimraf": "3.0.2",
+        "unload": "2.3.1"
+      }
+    },
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       "version": "1.1.0",
       "resolved": "https://verdaccio.lossless.one/brorand/-/brorand-1.1.0.tgz",
@@ -5305,7 +5328,6 @@
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       "resolved": "https://verdaccio.lossless.one/concat-map/-/concat-map-0.0.1.tgz",
       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/concat-stream": {
@@ -6259,6 +6281,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/detect-node": {
+      "version": "2.1.0",
+      "resolved": "https://verdaccio.lossless.one/detect-node/-/detect-node-2.1.0.tgz",
+      "integrity": "sha512-T0NIuQpnTvFDATNuHN5roPwSBG83rFsuO+MXXH9/3N1eFbn4wcPjttvjMLEPWJ0RGUYgQE7cGgS3tNxbqCGM7g==",
+      "license": "MIT"
+    },
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       "resolved": "https://verdaccio.lossless.one/devtools-protocol/-/devtools-protocol-0.0.901419.tgz",
@@ -6841,6 +6869,12 @@
         "node": ">= 0.6"
       }
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+    "node_modules/eventemitter3": {
+      "version": "4.0.7",
+      "resolved": "https://verdaccio.lossless.one/eventemitter3/-/eventemitter3-4.0.7.tgz",
+      "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
+      "license": "MIT"
+    },
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       "resolved": "https://verdaccio.lossless.one/events/-/events-3.3.0.tgz",
@@ -7485,7 +7519,6 @@
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-      "dev": true,
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       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
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@@ -8339,7 +8370,6 @@
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       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
-      "dev": true,
       "license": "ISC"
     },
     "node_modules/ini": {
@@ -9674,6 +9704,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/microseconds": {
+      "version": "0.2.0",
+      "resolved": "https://verdaccio.lossless.one/microseconds/-/microseconds-0.2.0.tgz",
+      "integrity": "sha512-n7DHHMjR1avBbSpsTBj6fmMGh2AGrifVV4e+WYc3Q9lO+xnSZ3NyhcBND3vzzatt05LFhoKFRxrIyklmLlUtyA==",
+      "license": "MIT"
+    },
     "node_modules/miller-rabin": {
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       "resolved": "https://verdaccio.lossless.one/miller-rabin/-/miller-rabin-4.0.1.tgz",
@@ -9769,7 +9805,6 @@
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-      "dev": true,
       "license": "ISC",
       "dependencies": {
         "brace-expansion": "^1.1.7"
@@ -9847,6 +9882,15 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/nano-time": {
+      "version": "1.0.0",
+      "resolved": "https://verdaccio.lossless.one/nano-time/-/nano-time-1.0.0.tgz",
+      "integrity": "sha1-sFVPaa2J4i0JB/ehKwmTpdlhN+8=",
+      "license": "ISC",
+      "dependencies": {
+        "big-integer": "^1.6.16"
+      }
+    },
     "node_modules/nanoid": {
       "version": "2.1.11",
       "resolved": "https://verdaccio.lossless.one/nanoid/-/nanoid-2.1.11.tgz",
@@ -10290,6 +10334,12 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/oblivious-set": {
+      "version": "1.0.0",
+      "resolved": "https://verdaccio.lossless.one/oblivious-set/-/oblivious-set-1.0.0.tgz",
+      "integrity": "sha512-z+pI07qxo4c2CulUHCDf9lcqDlMSo72N/4rLUpRXf6fu+q8vjt8y0xS+Tlf8NTJDdTXHbdeO1n3MlbctwEoXZw==",
+      "license": "MIT"
+    },
     "node_modules/on-finished": {
       "version": "2.3.0",
       "resolved": "https://verdaccio.lossless.one/on-finished/-/on-finished-2.3.0.tgz",
@@ -10317,7 +10367,6 @@
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       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "dev": true,
       "license": "ISC",
       "dependencies": {
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@@ -10398,6 +10447,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/p-finally": {
+      "version": "1.0.0",
+      "resolved": "https://verdaccio.lossless.one/p-finally/-/p-finally-1.0.0.tgz",
+      "integrity": "sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=",
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/p-limit": {
       "version": "2.3.0",
       "resolved": "https://verdaccio.lossless.one/p-limit/-/p-limit-2.3.0.tgz",
@@ -10427,6 +10485,34 @@
         "node": ">=8"
       }
     },
+    "node_modules/p-queue": {
+      "version": "6.6.2",
+      "resolved": "https://verdaccio.lossless.one/p-queue/-/p-queue-6.6.2.tgz",
+      "integrity": "sha512-RwFpb72c/BhQLEXIZ5K2e+AhgNVmIejGlTgiB9MzZ0e93GRvqZ7uSi0dvRF7/XIXDeNkra2fNHBxTyPDGySpjQ==",
+      "license": "MIT",
+      "dependencies": {
+        "eventemitter3": "^4.0.4",
+        "p-timeout": "^3.2.0"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/p-timeout": {
+      "version": "3.2.0",
+      "resolved": "https://verdaccio.lossless.one/p-timeout/-/p-timeout-3.2.0.tgz",
+      "integrity": "sha512-rhIwUycgwwKcP9yTOOFK/AKsAopjjCakVqLHePO3CC6Mir1Z99xT+R63jZxAT5lFZLa2inS5h+ZS2GvR99/FBg==",
+      "license": "MIT",
+      "dependencies": {
+        "p-finally": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/p-try": {
       "version": "2.2.0",
       "resolved": "https://verdaccio.lossless.one/p-try/-/p-try-2.2.0.tgz",
@@ -10933,7 +11019,6 @@
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-      "dev": true,
       "license": "MIT",
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@@ -12324,7 +12409,6 @@
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@@ -12646,7 +12730,6 @@
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       "dependencies": {
         "glob": "^7.1.3"
@@ -14869,6 +14952,16 @@
         "node": ">= 10.0.0"
       }
     },
+    "node_modules/unload": {
+      "version": "2.3.1",
+      "resolved": "https://verdaccio.lossless.one/unload/-/unload-2.3.1.tgz",
+      "integrity": "sha512-MUZEiDqvAN9AIDRbbBnVYVvfcR6DrjCqeU2YQMmliFZl9uaBUjTkhuDQkBiyAy8ad5bx1TXVbqZ3gg7namsWjA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@babel/runtime": "^7.6.2",
+        "detect-node": "2.1.0"
+      }
+    },
     "node_modules/unorm": {
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       "resolved": "https://verdaccio.lossless.one/unorm/-/unorm-1.6.0.tgz",
@@ -15318,7 +15411,6 @@
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       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true,
       "license": "ISC"
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@@ -16651,7 +16743,6 @@
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-      "dev": true,
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@@ -18646,8 +18737,7 @@
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-      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "dev": true
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     },
     "base": {
       "version": "0.11.2",
@@ -18696,6 +18786,11 @@
         "tweetnacl": "^0.14.3"
       }
     },
+    "big-integer": {
+      "version": "1.6.51",
+      "resolved": "https://verdaccio.lossless.one/big-integer/-/big-integer-1.6.51.tgz",
+      "integrity": "sha512-GPEid2Y9QU1Exl1rpO9B2IPJGHPSupF5GnVIP0blYvNOMer2bTvSWs1jGOUg04hTmu67nmLsQ9TBo1puaotBHg=="
+    },
     "binary-extensions": {
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       "resolved": "https://verdaccio.lossless.one/binary-extensions/-/binary-extensions-1.13.1.tgz",
@@ -18796,7 +18891,6 @@
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       "requires": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -18844,6 +18938,21 @@
         }
       }
     },
+    "broadcast-channel": {
+      "version": "4.9.0",
+      "resolved": "https://verdaccio.lossless.one/broadcast-channel/-/broadcast-channel-4.9.0.tgz",
+      "integrity": "sha512-xWzFb3wrOZGJF2kOSs2D3KvHXdLDMVb+WypEIoNvwblcHgUBydVy65pDJ9RS4WN9Kyvs0UVQuCCzfKme0G6Qjw==",
+      "requires": {
+        "@babel/runtime": "^7.16.0",
+        "detect-node": "^2.1.0",
+        "microseconds": "0.2.0",
+        "nano-time": "1.0.0",
+        "oblivious-set": "1.0.0",
+        "p-queue": "6.6.2",
+        "rimraf": "3.0.2",
+        "unload": "2.3.1"
+      }
+    },
     "brorand": {
       "version": "1.1.0",
       "resolved": "https://verdaccio.lossless.one/brorand/-/brorand-1.1.0.tgz",
@@ -19484,8 +19593,7 @@
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       "resolved": "https://verdaccio.lossless.one/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
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@@ -20195,6 +20303,11 @@
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       "dev": true
     },
+    "detect-node": {
+      "version": "2.1.0",
+      "resolved": "https://verdaccio.lossless.one/detect-node/-/detect-node-2.1.0.tgz",
+      "integrity": "sha512-T0NIuQpnTvFDATNuHN5roPwSBG83rFsuO+MXXH9/3N1eFbn4wcPjttvjMLEPWJ0RGUYgQE7cGgS3tNxbqCGM7g=="
+    },
     "devtools-protocol": {
       "version": "0.0.901419",
       "resolved": "https://verdaccio.lossless.one/devtools-protocol/-/devtools-protocol-0.0.901419.tgz",
@@ -20621,6 +20734,11 @@
       "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=",
       "dev": true
     },
+    "eventemitter3": {
+      "version": "4.0.7",
+      "resolved": "https://verdaccio.lossless.one/eventemitter3/-/eventemitter3-4.0.7.tgz",
+      "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw=="
+    },
     "events": {
       "version": "3.3.0",
       "resolved": "https://verdaccio.lossless.one/events/-/events-3.3.0.tgz",
@@ -21108,8 +21226,7 @@
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-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
-      "dev": true
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
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@@ -21189,7 +21306,6 @@
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-      "dev": true,
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@@ -21707,7 +21823,6 @@
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-      "dev": true,
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@@ -21716,8 +21831,7 @@
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     },
     "ini": {
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@@ -22692,6 +22806,11 @@
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       }
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+    "microseconds": {
+      "version": "0.2.0",
+      "resolved": "https://verdaccio.lossless.one/microseconds/-/microseconds-0.2.0.tgz",
+      "integrity": "sha512-n7DHHMjR1avBbSpsTBj6fmMGh2AGrifVV4e+WYc3Q9lO+xnSZ3NyhcBND3vzzatt05LFhoKFRxrIyklmLlUtyA=="
+    },
     "miller-rabin": {
       "version": "4.0.1",
       "resolved": "https://verdaccio.lossless.one/miller-rabin/-/miller-rabin-4.0.1.tgz",
@@ -22759,7 +22878,6 @@
       "version": "3.0.4",
       "resolved": "https://verdaccio.lossless.one/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
       "requires": {
         "brace-expansion": "^1.1.7"
       }
@@ -22819,6 +22937,14 @@
       "dev": true,
       "optional": true
     },
+    "nano-time": {
+      "version": "1.0.0",
+      "resolved": "https://verdaccio.lossless.one/nano-time/-/nano-time-1.0.0.tgz",
+      "integrity": "sha1-sFVPaa2J4i0JB/ehKwmTpdlhN+8=",
+      "requires": {
+        "big-integer": "^1.6.16"
+      }
+    },
     "nanoid": {
       "version": "2.1.11",
       "resolved": "https://verdaccio.lossless.one/nanoid/-/nanoid-2.1.11.tgz",
@@ -23146,6 +23272,11 @@
         "es-abstract": "^1.18.2"
       }
     },
+    "oblivious-set": {
+      "version": "1.0.0",
+      "resolved": "https://verdaccio.lossless.one/oblivious-set/-/oblivious-set-1.0.0.tgz",
+      "integrity": "sha512-z+pI07qxo4c2CulUHCDf9lcqDlMSo72N/4rLUpRXf6fu+q8vjt8y0xS+Tlf8NTJDdTXHbdeO1n3MlbctwEoXZw=="
+    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://verdaccio.lossless.one/on-finished/-/on-finished-2.3.0.tgz",
@@ -23165,7 +23296,6 @@
       "version": "1.4.0",
       "resolved": "https://verdaccio.lossless.one/once/-/once-1.4.0.tgz",
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "dev": true,
       "requires": {
         "wrappy": "1"
       }
@@ -23221,6 +23351,11 @@
       "integrity": "sha512-s73XxOZ4zpt1edZYZzvhqFa6uvQc1vwUa0K0BdtIZgQMAJj9IbebH+JkgKZc9h+B05PKHLOTl4ajG1BmNrVZlw==",
       "dev": true
     },
+    "p-finally": {
+      "version": "1.0.0",
+      "resolved": "https://verdaccio.lossless.one/p-finally/-/p-finally-1.0.0.tgz",
+      "integrity": "sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4="
+    },
     "p-limit": {
       "version": "2.3.0",
       "resolved": "https://verdaccio.lossless.one/p-limit/-/p-limit-2.3.0.tgz",
@@ -23239,6 +23374,23 @@
         "p-limit": "^2.2.0"
       }
     },
+    "p-queue": {
+      "version": "6.6.2",
+      "resolved": "https://verdaccio.lossless.one/p-queue/-/p-queue-6.6.2.tgz",
+      "integrity": "sha512-RwFpb72c/BhQLEXIZ5K2e+AhgNVmIejGlTgiB9MzZ0e93GRvqZ7uSi0dvRF7/XIXDeNkra2fNHBxTyPDGySpjQ==",
+      "requires": {
+        "eventemitter3": "^4.0.4",
+        "p-timeout": "^3.2.0"
+      }
+    },
+    "p-timeout": {
+      "version": "3.2.0",
+      "resolved": "https://verdaccio.lossless.one/p-timeout/-/p-timeout-3.2.0.tgz",
+      "integrity": "sha512-rhIwUycgwwKcP9yTOOFK/AKsAopjjCakVqLHePO3CC6Mir1Z99xT+R63jZxAT5lFZLa2inS5h+ZS2GvR99/FBg==",
+      "requires": {
+        "p-finally": "^1.0.0"
+      }
+    },
     "p-try": {
       "version": "2.2.0",
       "resolved": "https://verdaccio.lossless.one/p-try/-/p-try-2.2.0.tgz",
@@ -23643,8 +23795,7 @@
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://verdaccio.lossless.one/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
-      "dev": true
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
     },
     "path-key": {
       "version": "2.0.1",
@@ -24676,8 +24827,7 @@
     "regenerator-runtime": {
       "version": "0.13.7",
       "resolved": "https://verdaccio.lossless.one/regenerator-runtime/-/regenerator-runtime-0.13.7.tgz",
-      "integrity": "sha512-a54FxoJDIr27pgf7IgeQGxmqUNYrcV338lf/6gH456HZ/PhX+5BcwHXG9ajESmwe6WRO0tAzRUrRmNONWgkrew==",
-      "dev": true
+      "integrity": "sha512-a54FxoJDIr27pgf7IgeQGxmqUNYrcV338lf/6gH456HZ/PhX+5BcwHXG9ajESmwe6WRO0tAzRUrRmNONWgkrew=="
     },
     "regenerator-transform": {
       "version": "0.14.5",
@@ -24912,7 +25062,6 @@
       "version": "3.0.2",
       "resolved": "https://verdaccio.lossless.one/rimraf/-/rimraf-3.0.2.tgz",
       "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
-      "dev": true,
       "requires": {
         "glob": "^7.1.3"
       }
@@ -26545,6 +26694,15 @@
       "integrity": "sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==",
       "dev": true
     },
+    "unload": {
+      "version": "2.3.1",
+      "resolved": "https://verdaccio.lossless.one/unload/-/unload-2.3.1.tgz",
+      "integrity": "sha512-MUZEiDqvAN9AIDRbbBnVYVvfcR6DrjCqeU2YQMmliFZl9uaBUjTkhuDQkBiyAy8ad5bx1TXVbqZ3gg7namsWjA==",
+      "requires": {
+        "@babel/runtime": "^7.6.2",
+        "detect-node": "2.1.0"
+      }
+    },
     "unorm": {
       "version": "1.6.0",
       "resolved": "https://verdaccio.lossless.one/unorm/-/unorm-1.6.0.tgz",
@@ -26888,8 +27046,7 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://verdaccio.lossless.one/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "ws": {
       "version": "5.2.3",
diff --git a/package.json b/package.json
index a1abf25..9b8b0b0 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,8 @@
   },
   "dependencies": {
     "@apiglobal/typedrequest": "^1.0.65",
-    "@apiglobal/typedrequest-interfaces": "^1.0.15"
+    "@apiglobal/typedrequest-interfaces": "^1.0.15",
+    "broadcast-channel": "^4.9.0"
   },
   "files": [
     "ts/**/*",
diff --git a/ts/dees-comms.classes.deescomms.ts b/ts/dees-comms.classes.deescomms.ts
index cc524a1..b5c9226 100644
--- a/ts/dees-comms.classes.deescomms.ts
+++ b/ts/dees-comms.classes.deescomms.ts
@@ -1,6 +1,11 @@
 import { TypedRequest } from '@apiglobal/typedrequest';
 import * as plugins from './dees-comms.plugins';
 
+let BroadcastChannel = globalThis.BroadcastChannel;
+if (!BroadcastChannel) {
+  BroadcastChannel = plugins.BroadCastChannelPolyfill as any;
+}
+
 /**
  * a comm class for client side communication between workers and tabs.
  */
diff --git a/ts/dees-comms.plugins.ts b/ts/dees-comms.plugins.ts
index 61e9633..2cb9d58 100644
--- a/ts/dees-comms.plugins.ts
+++ b/ts/dees-comms.plugins.ts
@@ -3,3 +3,10 @@ import * as typedrequestInterfaces from '@apiglobal/typedrequest-interfaces';
 import * as typedrequest from '@apiglobal/typedrequest';
 
 export { typedrequestInterfaces, typedrequest };
+
+// third party scope
+import { BroadcastChannel as BroadCastChannelPolyfill } from 'broadcast-channel';
+
+export {
+  BroadCastChannelPolyfill
+}
\ No newline at end of file