From e83e6567afc137844322bd47008af4a0da1ec49c Mon Sep 17 00:00:00 2001
From: "G.Ambatte" <sean@robertson-family.nz>
Date: Thu, 4 Jul 2024 10:02:45 +1200
Subject: [PATCH] Add tests via JSDOM-global

---
 package-lock.json           | 324 ++++++++++++++++++++++++++++++++++++
 package.json                |   3 +
 tests/html/safeHTML.test.js |  50 ++++++
 3 files changed, 377 insertions(+)
 create mode 100644 tests/html/safeHTML.test.js

diff --git a/package-lock.json b/package-lock.json
index a7c9c48c7..c82aacd35 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,6 +27,8 @@
         "express-static-gzip": "2.1.7",
         "fs-extra": "11.2.0",
         "js-yaml": "^4.1.0",
+        "jsdom": "^24.1.0",
+        "jsdom-global": "^3.0.2",
         "jwt-simple": "^0.5.6",
         "less": "^3.13.1",
         "lodash": "^4.17.21",
@@ -5079,11 +5081,62 @@
         "node": ">=4"
       }
     },
+    "node_modules/cssstyle": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-4.0.1.tgz",
+      "integrity": "sha512-8ZYiJ3A/3OkDd093CBT/0UKDWry7ak4BdPTFP2+QEP7cmhouyq/Up709ASSj2cK02BbZiMgk7kYjZNS4QP5qrQ==",
+      "dependencies": {
+        "rrweb-cssom": "^0.6.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/cssstyle/node_modules/rrweb-cssom": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/rrweb-cssom/-/rrweb-cssom-0.6.0.tgz",
+      "integrity": "sha512-APM0Gt1KoXBz0iIkkdB/kfvGOwC4UuJFeG/c+yV7wSc7q96cG/kJ0HiYCnzivD9SB53cLV1MlHFNfOuPaadYSw=="
+    },
     "node_modules/dash-ast": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/dash-ast/-/dash-ast-1.0.0.tgz",
       "integrity": "sha512-Vy4dx7gquTeMcQR/hDkYLGUnwVil6vk4FOOct+djUnHOUWt+zJPJAaRIXaAFkPXtJjvlY7o3rfRu0/3hpnwoUA=="
     },
+    "node_modules/data-urls": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-5.0.0.tgz",
+      "integrity": "sha512-ZYP5VBHshaDAiVZxjbRVcFJpc+4xGgT0bK3vzy1HLN8jTO975HEbuYzZJcHoQEY5K1a0z8YayJkyVETa08eNTg==",
+      "dependencies": {
+        "whatwg-mimetype": "^4.0.0",
+        "whatwg-url": "^14.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/data-urls/node_modules/tr46": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-5.0.0.tgz",
+      "integrity": "sha512-tk2G5R2KRwBd+ZN0zaEXpmzdKyOYksXwywulIX95MBODjSzMIuQnQ3m8JxgbhnL1LeVo7lqQKsYa1O3Htl7K5g==",
+      "dependencies": {
+        "punycode": "^2.3.1"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/data-urls/node_modules/whatwg-url": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-14.0.0.tgz",
+      "integrity": "sha512-1lfMEm2IEr7RIV+f4lUNPOqfFL+pO+Xw3fJSqmjX9AbXcXcYOkCe1P6+9VBZB6n94af16NfZf+sSk0JCBZC9aw==",
+      "dependencies": {
+        "tr46": "^5.0.0",
+        "webidl-conversions": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/data-view-buffer": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/data-view-buffer/-/data-view-buffer-1.0.1.tgz",
@@ -5197,6 +5250,11 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/decimal.js": {
+      "version": "10.4.3",
+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.4.3.tgz",
+      "integrity": "sha512-VBBaLc1MgL5XpzgIP7ny5Z6Nx3UrRkIViUkPUdtl9aya5amy3De1gsUUSB1g3+3sExYNjCAsAznmukyxCb1GRA=="
+    },
     "node_modules/decode-uri-component": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.2.tgz",
@@ -5563,6 +5621,17 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/entities": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-4.5.0.tgz",
+      "integrity": "sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==",
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
+      }
+    },
     "node_modules/errno": {
       "version": "0.1.8",
       "resolved": "https://registry.npmjs.org/errno/-/errno-0.1.8.tgz",
@@ -7235,6 +7304,17 @@
       "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
       "dev": true
     },
+    "node_modules/html-encoding-sniffer": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-4.0.0.tgz",
+      "integrity": "sha512-Y22oTqIU4uuPgEemfz7NDJz6OeKf12Lsu+QC+s3BVpda64lTiMYCyGwg5ki4vFxkMwQdeZDl2adZoqUgdFuTgQ==",
+      "dependencies": {
+        "whatwg-encoding": "^3.1.1"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/html-escaper": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
@@ -7276,6 +7356,18 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/http-proxy-agent": {
+      "version": "7.0.2",
+      "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-7.0.2.tgz",
+      "integrity": "sha512-T1gkAiYYDWYx3V5Bmyu7HcfcvL7mUrTWiM6yOfa3PIphViJ/gFPbvidQ+veqSOHci/PxBcDabeUNCzpOODJZig==",
+      "dependencies": {
+        "agent-base": "^7.1.0",
+        "debug": "^4.3.4"
+      },
+      "engines": {
+        "node": ">= 14"
+      }
+    },
     "node_modules/https-browserify": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/https-browserify/-/https-browserify-1.0.0.tgz",
@@ -7885,6 +7977,11 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/is-potential-custom-element-name": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-potential-custom-element-name/-/is-potential-custom-element-name-1.0.1.tgz",
+      "integrity": "sha512-bCYeRA2rVibKZd+s2625gGnGF/t7DSqDs4dP7CrLA1m7jKWz6pps0LpYLJN8Q64HtmPKJ1hrN3nzPNKFEKOUiQ=="
+    },
     "node_modules/is-regex": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.1.4.tgz",
@@ -9788,6 +9885,96 @@
         "js-yaml": "bin/js-yaml.js"
       }
     },
+    "node_modules/jsdom": {
+      "version": "24.1.0",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-24.1.0.tgz",
+      "integrity": "sha512-6gpM7pRXCwIOKxX47cgOyvyQDN/Eh0f1MeKySBV2xGdKtqJBLj8P25eY3EVCWo2mglDDzozR2r2MW4T+JiNUZA==",
+      "dependencies": {
+        "cssstyle": "^4.0.1",
+        "data-urls": "^5.0.0",
+        "decimal.js": "^10.4.3",
+        "form-data": "^4.0.0",
+        "html-encoding-sniffer": "^4.0.0",
+        "http-proxy-agent": "^7.0.2",
+        "https-proxy-agent": "^7.0.4",
+        "is-potential-custom-element-name": "^1.0.1",
+        "nwsapi": "^2.2.10",
+        "parse5": "^7.1.2",
+        "rrweb-cssom": "^0.7.0",
+        "saxes": "^6.0.0",
+        "symbol-tree": "^3.2.4",
+        "tough-cookie": "^4.1.4",
+        "w3c-xmlserializer": "^5.0.0",
+        "webidl-conversions": "^7.0.0",
+        "whatwg-encoding": "^3.1.1",
+        "whatwg-mimetype": "^4.0.0",
+        "whatwg-url": "^14.0.0",
+        "ws": "^8.17.0",
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "canvas": "^2.11.2"
+      },
+      "peerDependenciesMeta": {
+        "canvas": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/jsdom-global": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/jsdom-global/-/jsdom-global-3.0.2.tgz",
+      "integrity": "sha512-t1KMcBkz/pT5JrvcJbpUR2u/w1kO9jXctaaGJ0vZDzwFnIvGWw9IDSRciT83kIs8Bnw4qpOl8bQK08V01YgMPg==",
+      "peerDependencies": {
+        "jsdom": ">=10.0.0"
+      }
+    },
+    "node_modules/jsdom/node_modules/tr46": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-5.0.0.tgz",
+      "integrity": "sha512-tk2G5R2KRwBd+ZN0zaEXpmzdKyOYksXwywulIX95MBODjSzMIuQnQ3m8JxgbhnL1LeVo7lqQKsYa1O3Htl7K5g==",
+      "dependencies": {
+        "punycode": "^2.3.1"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/jsdom/node_modules/whatwg-url": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-14.0.0.tgz",
+      "integrity": "sha512-1lfMEm2IEr7RIV+f4lUNPOqfFL+pO+Xw3fJSqmjX9AbXcXcYOkCe1P6+9VBZB6n94af16NfZf+sSk0JCBZC9aw==",
+      "dependencies": {
+        "tr46": "^5.0.0",
+        "webidl-conversions": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/jsdom/node_modules/ws": {
+      "version": "8.18.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.0.tgz",
+      "integrity": "sha512-8VbfWfHLbbwu3+N6OKsOMpBdT4kXPDDB9cJk2bJ6mh9ucxdlnNvH1e+roYkKmN9Nxw2yjz7VzeO9oOz2zJ04Pw==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/jsesc": {
       "version": "2.5.2",
       "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.2.tgz",
@@ -11160,6 +11347,11 @@
         "node": ">=8"
       }
     },
+    "node_modules/nwsapi": {
+      "version": "2.2.10",
+      "resolved": "https://registry.npmjs.org/nwsapi/-/nwsapi-2.2.10.tgz",
+      "integrity": "sha512-QK0sRs7MKv0tKe1+5uZIQk/C8XGza4DAnztJG8iD+TpJIORARrCxczA738awHrZoHeTjSSoHqao2teO0dC/gFQ=="
+    },
     "node_modules/object-assign": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
@@ -11478,6 +11670,17 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/parse5": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-7.1.2.tgz",
+      "integrity": "sha512-Czj1WaSVpaoj0wbhMzLmWD69anp2WH7FXMB9n1Sy8/ZFF9jolSQVMu1Ij5WIyGmcBmhk7EOndpO4mIpihVqAXw==",
+      "dependencies": {
+        "entities": "^4.4.0"
+      },
+      "funding": {
+        "url": "https://github.com/inikulin/parse5?sponsor=1"
+      }
+    },
     "node_modules/parseurl": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
@@ -11895,6 +12098,11 @@
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       "optional": true
     },
+    "node_modules/psl": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.9.0.tgz",
+      "integrity": "sha512-E/ZsdU4HLs/68gYzgGTkMicWTLPdAftJLfJFlLUAAKZGkStNU72sZjT66SnMDVOfOWY/YAoiD7Jxa9iHvngcag=="
+    },
     "node_modules/pstree.remy": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/pstree.remy/-/pstree.remy-1.1.8.tgz",
@@ -11973,6 +12181,11 @@
         "node": ">=0.4.x"
       }
     },
+    "node_modules/querystringify": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/querystringify/-/querystringify-2.2.0.tgz",
+      "integrity": "sha512-FIqgj2EUvTa7R50u0rGsyTftzjYmv/a3hO345bZNrqabNqjtgiDMgmo4mkUjd+nzU5oF3dClKqFIPUKybUyqoQ=="
+    },
     "node_modules/queue-microtask": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -12423,6 +12636,11 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/requires-port": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
+      "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ=="
+    },
     "node_modules/resolve": {
       "version": "1.22.1",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.1.tgz",
@@ -12526,6 +12744,11 @@
         "inherits": "^2.0.1"
       }
     },
+    "node_modules/rrweb-cssom": {
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/rrweb-cssom/-/rrweb-cssom-0.7.1.tgz",
+      "integrity": "sha512-TrEMa7JGdVm0UThDJSx7ddw5nVm3UJS9o9CCIZ72B1vSyEZoziDqBYP3XIoi/12lKrJR8rE3jeFHMok2F/Mnsg=="
+    },
     "node_modules/run-parallel": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
@@ -12630,6 +12853,17 @@
         "truncate-utf8-bytes": "^1.0.0"
       }
     },
+    "node_modules/saxes": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/saxes/-/saxes-6.0.0.tgz",
+      "integrity": "sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==",
+      "dependencies": {
+        "xmlchars": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=v12.22.7"
+      }
+    },
     "node_modules/scheduler": {
       "version": "0.23.2",
       "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
@@ -13824,6 +14058,11 @@
       "integrity": "sha512-ovssysQTa+luh7A5Weu3Rta6FJlFBBbInjOh722LIt6klpU2/HtdUbszju/G4devcvk8PGt7FCLv5wftu3THUA==",
       "dev": true
     },
+    "node_modules/symbol-tree": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
+      "integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw=="
+    },
     "node_modules/syntax-error": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/syntax-error/-/syntax-error-1.4.0.tgz",
@@ -14073,6 +14312,28 @@
         "nodetouch": "bin/nodetouch.js"
       }
     },
+    "node_modules/tough-cookie": {
+      "version": "4.1.4",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.1.4.tgz",
+      "integrity": "sha512-Loo5UUvLD9ScZ6jh8beX1T6sO1w2/MpCRpEP7V280GKMVUQ0Jzar2U3UJPsrdbziLEMMhu3Ujnq//rhiFuIeag==",
+      "dependencies": {
+        "psl": "^1.1.33",
+        "punycode": "^2.1.1",
+        "universalify": "^0.2.0",
+        "url-parse": "^1.5.3"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/tough-cookie/node_modules/universalify": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.2.0.tgz",
+      "integrity": "sha512-CJ1QgKmNg3CwvAv/kOFmtnEN05f0D/cn9QntgNOQlQF9dgvVTHj3t+8JPdjqawCHk7V/KA+fbUqzZ9XWhcqPUg==",
+      "engines": {
+        "node": ">= 4.0.0"
+      }
+    },
     "node_modules/tr46": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/tr46/-/tr46-4.1.1.tgz",
@@ -14478,6 +14739,15 @@
         "querystring": "0.2.0"
       }
     },
+    "node_modules/url-parse": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
+      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
+      "dependencies": {
+        "querystringify": "^2.1.1",
+        "requires-port": "^1.0.0"
+      }
+    },
     "node_modules/url-template": {
       "version": "2.0.8",
       "resolved": "https://registry.npmjs.org/url-template/-/url-template-2.0.8.tgz",
@@ -14622,6 +14892,17 @@
       "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-1.1.2.tgz",
       "integrity": "sha512-2ham8XPWTONajOR0ohOKOHXkm3+gaBmGut3SRuu75xLd/RRaY6vqgh8NBYYk7+RW3u5AtzPQZG8F10LHkl0lAQ=="
     },
+    "node_modules/w3c-xmlserializer": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz",
+      "integrity": "sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==",
+      "dependencies": {
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/walker": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/walker/-/walker-1.0.8.tgz",
@@ -14997,6 +15278,36 @@
         "node": ">=12"
       }
     },
+    "node_modules/whatwg-encoding": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-3.1.1.tgz",
+      "integrity": "sha512-6qN4hJdMwfYBtE3YBTTHhoeuUrDBPZmbQaxWAqSALV/MeEnR5z1xd8UKud2RAkFoPkmB+hli1TZSnyi84xz1vQ==",
+      "dependencies": {
+        "iconv-lite": "0.6.3"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/whatwg-encoding/node_modules/iconv-lite": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
+      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/whatwg-mimetype": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-4.0.0.tgz",
+      "integrity": "sha512-QaKxh0eNIi2mE9p2vEdzfagOKHCcj1pJ56EEHGQOVxp8r9/iszLUUV7v89x9O1p/T+NlTM5W7jW6+cz4Fq1YVg==",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/whatwg-url": {
       "version": "13.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-13.0.0.tgz",
@@ -15193,6 +15504,19 @@
         }
       }
     },
+    "node_modules/xml-name-validator": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
+      "integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/xmlchars": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
+      "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw=="
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/package.json b/package.json
index 60041a1fe..f947ab060 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
     "test:definition-lists": "jest tests/markdown/definition-lists.test.js --verbose --noStackTrace",
     "test:emojis": "jest tests/markdown/emojis.test.js --verbose --noStackTrace",
     "test:route": "jest tests/routes/static-pages.test.js --verbose",
+    "test:safehtml": "jest tests/html/safeHTML.test.js --verbose",
     "phb": "node scripts/phb.js",
     "prod": "set NODE_ENV=production && npm run build",
     "postinstall": "npm run build",
@@ -99,6 +100,8 @@
     "express-static-gzip": "2.1.7",
     "fs-extra": "11.2.0",
     "js-yaml": "^4.1.0",
+    "jsdom": "^24.1.0",
+    "jsdom-global": "^3.0.2",
     "jwt-simple": "^0.5.6",
     "less": "^3.13.1",
     "lodash": "^4.17.21",
diff --git a/tests/html/safeHTML.test.js b/tests/html/safeHTML.test.js
new file mode 100644
index 000000000..ed5e738d6
--- /dev/null
+++ b/tests/html/safeHTML.test.js
@@ -0,0 +1,50 @@
+/* eslint-disable max-lines */
+
+require('jsdom-global')();
+
+import { safeHTML } from '../../client/homebrew/brewRenderer/safeHTML';
+
+test('Javascript via href', function() {
+	const source = `<a href="javascript:alert('This is a JavaScript injection via href attribute')">Click me</a>`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<a>Click me</a>');
+});
+
+test('Javascript via src', function() {
+	const source = `<img src="javascript:alert('This is a JavaScript injection via src attribute')">`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<img>');
+});
+
+test('Javascript via action', function() {
+	const source = `<form action="javascript:alert('This is a JavaScript injection via action attribute')">\n<input type="submit" value="Submit">\n</form>`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<form>\n<input type=\"submit\" value=\"Submit\">\n</form>');
+});
+
+test('Javascript via inline event handler - onClick', function() {
+	const source = `<div style="background-color: red; color: white; width: 100px; height: 100px;" onclick="alert('This is a JavaScript injection via inline event handler')">\nClick me\n</div>`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<div style=\"background-color: red; color: white; width: 100px; height: 100px;\">\nClick me\n</div>');
+});
+
+test('Javascript via inline event handler - onMouseOver', function() {
+	const source = `<div onmouseover="alert('This is a JavaScript injection via inline event handler')">Hover over me</div>`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<div>Hover over me</div>');
+});
+
+test('Javascript via data attribute', function() {
+	const source = `<div data-code="javascript:alert('This is a JavaScript injection via data attribute')">Test</div>`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<div>Test</div>');
+});
+
+test('Javascript via event delegation', function() {
+	const source = `<div id="parent"><button id="child">Click me</button></div><script>document.getElementById('parent').addEventListener('click', function(event) {if (event.target.id === 'child') {console.log('This is JavaScript executed via event delegation');}});</script>`;
+	const rendered = safeHTML(source);
+	expect(rendered).toBe('<div id="parent"><button id="child">Click me</button></div>');
+});
+
+
+