Switch to isomorphic-dompurify and update jsdom usage

Replaces the custom dompurify utility with isomorphic-dompurify for improved SSR compatibility. Updates MarkdownRenderer and CodeBlock components to use the new sanitizer. Removes the now-unnecessary dompurify.ts utility. Updates related dependencies in package.json and aligns jsdom and related packages to compatible versions.

package-lock.json

@@ -21,7 +21,7 @@
 				"highlight.js": "^11.7.0",
 				"husky": "^9.0.11",
 				"ip-address": "^9.0.5",
-				"jsdom": "^27.0.0",
+				"jsdom": "^22.0.0",
 				"json5": "^2.2.3",
 				"katex": "^0.16.21",
 				"lint-staged": "^15.2.7",
@@ -55,6 +55,7 @@
 				"@tailwindcss/typography": "^0.5.9",
 				"@types/dompurify": "^3.0.5",
 				"@types/js-yaml": "^4.0.9",
+				"@types/jsdom": "^21.1.1",
 				"@types/katex": "^0.16.7",
 				"@types/mime-types": "^2.1.4",
 				"@types/minimist": "^1.2.5",
@@ -70,6 +71,7 @@
 				"eslint": "^8.28.0",
 				"eslint-config-prettier": "^8.5.0",
 				"eslint-plugin-svelte": "^2.45.1",
+				"isomorphic-dompurify": "2.13.0",
 				"js-yaml": "^4.1.0",
 				"minimist": "^1.2.8",
 				"mongodb-memory-server": "^10.1.2",
@@ -244,54 +246,25 @@
 			}
 		},
 		"node_modules/@asamuzakjp/css-color": {
-			"version": "4.0.5",
-			"resolved": "https://registry.npmjs.org/@asamuzakjp/css-color/-/css-color-4.0.5.tgz",
-			"integrity": "sha512-lMrXidNhPGsDjytDy11Vwlb6OIGrT3CmLg3VWNFyWkLWtijKl7xjvForlh8vuj0SHGjgl4qZEQzUmYTeQA2JFQ==",
+			"version": "3.2.0",
+			"resolved": "https://registry.npmjs.org/@asamuzakjp/css-color/-/css-color-3.2.0.tgz",
+			"integrity": "sha512-K1A6z8tS3XsmCMM86xoWdn7Fkdn9m6RSVtocUrJYIwZnFVkng/PvkEoWtOWmP+Scc6saYWHWZYbndEEXxl24jw==",
+			"dev": true,
 			"license": "MIT",
 			"dependencies": {
-				"@csstools/css-calc": "^2.1.4",
-				"@csstools/css-color-parser": "^3.1.0",
-				"@csstools/css-parser-algorithms": "^3.0.5",
-				"@csstools/css-tokenizer": "^3.0.4",
-				"lru-cache": "^11.2.1"
+				"@csstools/css-calc": "^2.1.3",
+				"@csstools/css-color-parser": "^3.0.9",
+				"@csstools/css-parser-algorithms": "^3.0.4",
+				"@csstools/css-tokenizer": "^3.0.3",
+				"lru-cache": "^10.4.3"
 			}
 		},
 		"node_modules/@asamuzakjp/css-color/node_modules/lru-cache": {
-			"version": "11.2.2",
-			"resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.2.2.tgz",
-			"integrity": "sha512-F9ODfyqML2coTIsQpSkRHnLSZMtkU8Q+mSfcaIyKwy58u+8k5nvAYeiNhsyMARvzNcXJ9QfWVrcPsC9e9rAxtg==",
-			"license": "ISC",
-			"engines": {
-				"node": "20 || >=22"
-			}
-		},
-		"node_modules/@asamuzakjp/dom-selector": {
-			"version": "6.6.2",
-			"resolved": "https://registry.npmjs.org/@asamuzakjp/dom-selector/-/dom-selector-6.6.2.tgz",
-			"integrity": "sha512-+AG0jN9HTwfDLBhjhX1FKi6zlIAc/YGgEHlN/OMaHD1pOPFsC5CpYQpLkPX0aFjyaVmoq9330cQDCU4qnSL1qA==",
-			"license": "MIT",
-			"dependencies": {
-				"@asamuzakjp/nwsapi": "^2.3.9",
-				"bidi-js": "^1.0.3",
-				"css-tree": "^3.1.0",
-				"is-potential-custom-element-name": "^1.0.1",
-				"lru-cache": "^11.2.2"
-			}
-		},
-		"node_modules/@asamuzakjp/dom-selector/node_modules/lru-cache": {
-			"version": "11.2.2",
-			"resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.2.2.tgz",
-			"integrity": "sha512-F9ODfyqML2coTIsQpSkRHnLSZMtkU8Q+mSfcaIyKwy58u+8k5nvAYeiNhsyMARvzNcXJ9QfWVrcPsC9e9rAxtg==",
-			"license": "ISC",
-			"engines": {
-				"node": "20 || >=22"
-			}
-		},
-		"node_modules/@asamuzakjp/nwsapi": {
-			"version": "2.3.9",
-			"resolved": "https://registry.npmjs.org/@asamuzakjp/nwsapi/-/nwsapi-2.3.9.tgz",
-			"integrity": "sha512-n8GuYSrI9bF7FFZ/SjhwevlHc8xaVlb/7HmHelnc/PZXBD2ZR49NnN9sMMuDdEGPeeRQ5d0hqlSlEpgCX3Wl0Q==",
-			"license": "MIT"
+			"version": "10.4.3",
+			"resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-10.4.3.tgz",
+			"integrity": "sha512-JNAzZcXrCt42VGLuYz0zfAzDfAvJWW6AfYlDBQyDV5DClI2m5sAmK+OIO7s59XfsRsWHp02jAJrRadPRGTt6SQ==",
+			"dev": true,
+			"license": "ISC"
 		},
 		"node_modules/@babel/code-frame": {
 			"version": "7.27.1",
@@ -331,6 +304,7 @@
 			"version": "5.1.0",
 			"resolved": "https://registry.npmjs.org/@csstools/color-helpers/-/color-helpers-5.1.0.tgz",
 			"integrity": "sha512-S11EXWJyy0Mz5SYvRmY8nJYTFFd1LCNV+7cXyAgQtOOuzb4EsgfqDufL+9esx72/eLhsRdGZwaldu/h+E4t4BA==",
+			"dev": true,
 			"funding": [
 				{
 					"type": "github",
@@ -350,6 +324,7 @@
 			"version": "2.1.4",
 			"resolved": "https://registry.npmjs.org/@csstools/css-calc/-/css-calc-2.1.4.tgz",
 			"integrity": "sha512-3N8oaj+0juUw/1H3YwmDDJXCgTB1gKU6Hc/bB502u9zR0q2vd786XJH9QfrKIEgFlZmhZiq6epXl4rHqhzsIgQ==",
+			"dev": true,
 			"funding": [
 				{
 					"type": "github",
@@ -373,6 +348,7 @@
 			"version": "3.1.0",
 			"resolved": "https://registry.npmjs.org/@csstools/css-color-parser/-/css-color-parser-3.1.0.tgz",
 			"integrity": "sha512-nbtKwh3a6xNVIp/VRuXV64yTKnb1IjTAEEh3irzS+HkKjAOYLTGNb9pmVNntZ8iVBHcWDA2Dof0QtPgFI1BaTA==",
+			"dev": true,
 			"funding": [
 				{
 					"type": "github",
@@ -400,6 +376,7 @@
 			"version": "3.0.5",
 			"resolved": "https://registry.npmjs.org/@csstools/css-parser-algorithms/-/css-parser-algorithms-3.0.5.tgz",
 			"integrity": "sha512-DaDeUkXZKjdGhgYaHNJTV9pV7Y9B3b644jCLs9Upc3VeNGg6LWARAT6O+Q+/COo+2gg/bM5rhpMAtf70WqfBdQ==",
+			"dev": true,
 			"funding": [
 				{
 					"type": "github",
@@ -418,32 +395,11 @@
 				"@csstools/css-tokenizer": "^3.0.4"
 			}
 		},
-		"node_modules/@csstools/css-syntax-patches-for-csstree": {
-			"version": "1.0.14",
-			"resolved": "https://registry.npmjs.org/@csstools/css-syntax-patches-for-csstree/-/css-syntax-patches-for-csstree-1.0.14.tgz",
-			"integrity": "sha512-zSlIxa20WvMojjpCSy8WrNpcZ61RqfTfX3XTaOeVlGJrt/8HF3YbzgFZa01yTbT4GWQLwfTcC3EB8i3XnB647Q==",
-			"funding": [
-				{
-					"type": "github",
-					"url": "https://github.com/sponsors/csstools"
-				},
-				{
-					"type": "opencollective",
-					"url": "https://opencollective.com/csstools"
-				}
-			],
-			"license": "MIT-0",
-			"engines": {
-				"node": ">=18"
-			},
-			"peerDependencies": {
-				"postcss": "^8.4"
-			}
-		},
 		"node_modules/@csstools/css-tokenizer": {
 			"version": "3.0.4",
 			"resolved": "https://registry.npmjs.org/@csstools/css-tokenizer/-/css-tokenizer-3.0.4.tgz",
 			"integrity": "sha512-Vd/9EVDiu6PPJt9yAh6roZP6El1xHrdvIVGjyBsHR0RYwNHgL7FJPyIIW4fANJNG6FtyZfvlRPpFI4ZM/lubvw==",
+			"dev": true,
 			"funding": [
 				{
 					"type": "github",
@@ -2654,6 +2610,15 @@
 			"integrity": "sha512-OvjF+z51L3ov0OyAU0duzsYuvO01PH7x4t6DJx+guahgTnBHkhJdG7soQeTSFLWN3efnHyibZ4Z8l2EuWwJN3A==",
 			"license": "MIT"
 		},
+		"node_modules/@tootallnate/once": {
+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-2.0.0.tgz",
+			"integrity": "sha512-XCuKFP5PS55gnMVu3dty8KPatLqUoy/ZYzDzAGCQ8JNFCkLXzmI7vNHCR+XpbZaMWQK/vQubr7PkYq8g470J/A==",
+			"license": "MIT",
+			"engines": {
+				"node": ">= 10"
+			}
+		},
 		"node_modules/@types/aria-query": {
 			"version": "5.0.4",
 			"resolved": "https://registry.npmjs.org/@types/aria-query/-/aria-query-5.0.4.tgz",
@@ -2706,6 +2671,18 @@
 			"dev": true,
 			"license": "MIT"
 		},
+		"node_modules/@types/jsdom": {
+			"version": "21.1.7",
+			"resolved": "https://registry.npmjs.org/@types/jsdom/-/jsdom-21.1.7.tgz",
+			"integrity": "sha512-yOriVnggzrnQ3a9OKOCxaVuSug3w3/SbOj5i7VwXWZEyUNl3bLF9V3MfxGbZKuwqJOQyRfqXyROBB1CoZLFWzA==",
+			"dev": true,
+			"license": "MIT",
+			"dependencies": {
+				"@types/node": "*",
+				"@types/tough-cookie": "*",
+				"parse5": "^7.0.0"
+			}
+		},
 		"node_modules/@types/json-schema": {
 			"version": "7.0.15",
 			"resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
@@ -2787,6 +2764,13 @@
 			"dev": true,
 			"license": "MIT"
 		},
+		"node_modules/@types/tough-cookie": {
+			"version": "4.0.5",
+			"resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-4.0.5.tgz",
+			"integrity": "sha512-/Ad8+nIOV7Rl++6f1BdKxFSMgmoqEoYbHRpPcx3JEfv8VRsQe9Z4mCXeJBzxs7mbHY/XOZZuXlRNfhpVPbs6ZA==",
+			"dev": true,
+			"license": "MIT"
+		},
 		"node_modules/@types/trusted-types": {
 			"version": "2.0.7",
 			"resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
@@ -3209,6 +3193,13 @@
 				"url": "https://opencollective.com/vitest"
 			}
 		},
+		"node_modules/abab": {
+			"version": "2.0.6",
+			"resolved": "https://registry.npmjs.org/abab/-/abab-2.0.6.tgz",
+			"integrity": "sha512-j2afSsaIENvHZN2B8GOpF566vZ5WVk5opAiMTvWgaQT8DkbOqsTfvNAvHoRGU2zzP8cPoqys+xHTRDWW8L+/BA==",
+			"deprecated": "Use your platform's native atob() and btoa() methods instead",
+			"license": "BSD-3-Clause"
+		},
 		"node_modules/abort-controller": {
 			"version": "3.0.0",
 			"resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz",
@@ -3247,6 +3238,7 @@
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+			"dev": true,
 			"license": "MIT",
 			"engines": {
 				"node": ">= 14"
@@ -3505,15 +3497,6 @@
 			],
 			"license": "MIT"
 		},
-		"node_modules/bidi-js": {
-			"version": "1.0.3",
-			"resolved": "https://registry.npmjs.org/bidi-js/-/bidi-js-1.0.3.tgz",
-			"integrity": "sha512-RKshQI1R3YQ+n9YJz2QQ147P66ELpa1FQEg20Dk8oW9t2KgLbpDLLp9aGZ7y8WHSshDknG0bknqGw5/tyCs5tw==",
-			"license": "MIT",
-			"dependencies": {
-				"require-from-string": "^2.0.2"
-			}
-		},
 		"node_modules/binary-extensions": {
 			"version": "2.3.0",
 			"resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
@@ -3986,19 +3969,6 @@
 				"postcss-value-parser": "^4.0.2"
 			}
 		},
-		"node_modules/css-tree": {
-			"version": "3.1.0",
-			"resolved": "https://registry.npmjs.org/css-tree/-/css-tree-3.1.0.tgz",
-			"integrity": "sha512-0eW44TGN5SQXU1mWSkKwFstI/22X2bG1nYzZTYMAWjylYURhse752YgbE4Cx46AC+bAvI+/dYTPRk1LqSUnu6w==",
-			"license": "MIT",
-			"dependencies": {
-				"mdn-data": "2.12.2",
-				"source-map-js": "^1.0.1"
-			},
-			"engines": {
-				"node": "^10 || ^12.20.0 || ^14.13.0 || >=15.0.0"
-			}
-		},
 		"node_modules/cssesc": {
 			"version": "3.0.0",
 			"resolved": "https://registry.npmjs.org/cssesc/-/cssesc-3.0.0.tgz",
@@ -4012,30 +3982,29 @@
 			}
 		},
 		"node_modules/cssstyle": {
-			"version": "5.3.1",
-			"resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-5.3.1.tgz",
-			"integrity": "sha512-g5PC9Aiph9eiczFpcgUhd9S4UUO3F+LHGRIi5NUMZ+4xtoIYbHNZwZnWA2JsFGe8OU8nl4WyaEFiZuGuxlutJQ==",
+			"version": "3.0.0",
+			"resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-3.0.0.tgz",
+			"integrity": "sha512-N4u2ABATi3Qplzf0hWbVCdjenim8F3ojEXpBDF5hBpjzW182MjNGLqfmQ0SkSPeQ+V86ZXgeH8aXj6kayd4jgg==",
 			"license": "MIT",
 			"dependencies": {
-				"@asamuzakjp/css-color": "^4.0.3",
-				"@csstools/css-syntax-patches-for-csstree": "^1.0.14",
-				"css-tree": "^3.1.0"
+				"rrweb-cssom": "^0.6.0"
 			},
 			"engines": {
-				"node": ">=20"
+				"node": ">=14"
 			}
 		},
 		"node_modules/data-urls": {
-			"version": "6.0.0",
-			"resolved": "https://registry.npmjs.org/data-urls/-/data-urls-6.0.0.tgz",
-			"integrity": "sha512-BnBS08aLUM+DKamupXs3w2tJJoqU+AkaE/+6vQxi/G/DPmIZFJJp9Dkb1kM03AZx8ADehDUZgsNxju3mPXZYIA==",
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/data-urls/-/data-urls-4.0.0.tgz",
+			"integrity": "sha512-/mMTei/JXPqvFqQtfyTowxmJVwr2PVAeCcDxyFf6LhoOu/09TX2OX3kb2wzi4DMXcfj4OItwDOnhl5oziPnT6g==",
 			"license": "MIT",
 			"dependencies": {
-				"whatwg-mimetype": "^4.0.0",
-				"whatwg-url": "^15.0.0"
+				"abab": "^2.0.6",
+				"whatwg-mimetype": "^3.0.0",
+				"whatwg-url": "^12.0.0"
 			},
 			"engines": {
-				"node": ">=20"
+				"node": ">=14"
 			}
 		},
 		"node_modules/date-fns": {
@@ -4192,6 +4161,19 @@
 			"license": "MIT",
 			"peer": true
 		},
+		"node_modules/domexception": {
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/domexception/-/domexception-4.0.0.tgz",
+			"integrity": "sha512-A2is4PLG+eeSfoTMA95/s4pvAoSo2mKtiM5jlHkAVewmiO8ISFTFKZjH7UAM1Atli/OT/7JHOrJRJiMKUZKYBw==",
+			"deprecated": "Use your platform's native DOMException instead",
+			"license": "MIT",
+			"dependencies": {
+				"webidl-conversions": "^7.0.0"
+			},
+			"engines": {
+				"node": ">=12"
+			}
+		},
 		"node_modules/dompurify": {
 			"version": "3.3.0",
 			"resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.0.tgz",
@@ -5398,34 +5380,48 @@
 			"license": "MIT"
 		},
 		"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==",
+			"version": "3.0.0",
+			"resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-3.0.0.tgz",
+			"integrity": "sha512-oWv4T4yJ52iKrufjnyZPkrN0CH3QnrUqdB6In1g5Fe1mia8GmF36gnfNySxoZtxD5+NmYw1EElVXiBk93UeskA==",
 			"license": "MIT",
 			"dependencies": {
-				"whatwg-encoding": "^3.1.1"
+				"whatwg-encoding": "^2.0.0"
 			},
 			"engines": {
-				"node": ">=18"
+				"node": ">=12"
 			}
 		},
 		"node_modules/http-proxy-agent": {
-			"version": "7.0.2",
-			"resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-7.0.2.tgz",
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+			"version": "5.0.0",
+			"resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-5.0.0.tgz",
+			"integrity": "sha512-n2hY8YdoRE1i7r6M0w9DIw5GgZN0G25P8zLCRQ8rjXtTU3vsNFBI/vWK/UIeE6g5MUUz6avwAPXmL6Fy9D/90w==",
 			"license": "MIT",
 			"dependencies": {
-				"agent-base": "^7.1.0",
-				"debug": "^4.3.4"
+				"@tootallnate/once": "2",
+				"agent-base": "6",
+				"debug": "4"
 			},
 			"engines": {
-				"node": ">= 14"
+				"node": ">= 6"
+			}
+		},
+		"node_modules/http-proxy-agent/node_modules/agent-base": {
+			"version": "6.0.2",
+			"resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+			"integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
+			"license": "MIT",
+			"dependencies": {
+				"debug": "4"
+			},
+			"engines": {
+				"node": ">= 6.0.0"
 			}
 		},
 		"node_modules/https-proxy-agent": {
 			"version": "7.0.6",
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+			"dev": true,
 			"license": "MIT",
 			"dependencies": {
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-			"license": "MIT"
-		},
 		"node_modules/to-regex-range": {
 			"version": "5.0.1",
 			"resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
@@ -9262,27 +9472,30 @@
 			}
 		},
 		"node_modules/tough-cookie": {
-			"version": "6.0.0",
-			"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-6.0.0.tgz",
-			"integrity": "sha512-kXuRi1mtaKMrsLUxz3sQYvVl37B0Ns6MzfrtV5DvJceE9bPyspOqk9xxv7XbZWcfLWbFmm997vl83qUWVJA64w==",
+			"version": "4.1.4",
+			"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.1.4.tgz",
+			"integrity": "sha512-Loo5UUvLD9ScZ6jh8beX1T6sO1w2/MpCRpEP7V280GKMVUQ0Jzar2U3UJPsrdbziLEMMhu3Ujnq//rhiFuIeag==",
 			"license": "BSD-3-Clause",
 			"dependencies": {
-				"tldts": "^7.0.5"
+				"psl": "^1.1.33",
+				"punycode": "^2.1.1",
+				"universalify": "^0.2.0",
+				"url-parse": "^1.5.3"
 			},
 			"engines": {
-				"node": ">=16"
+				"node": ">=6"
 			}
 		},
 		"node_modules/tr46": {
-			"version": "6.0.0",
-			"resolved": "https://registry.npmjs.org/tr46/-/tr46-6.0.0.tgz",
-			"integrity": "sha512-bLVMLPtstlZ4iMQHpFHTR7GAGj2jxi8Dg0s2h2MafAE4uSWF98FC/3MomU51iQAMf8/qDUbKWf5GxuvvVcXEhw==",
+			"version": "4.1.1",
+			"resolved": "https://registry.npmjs.org/tr46/-/tr46-4.1.1.tgz",
+			"integrity": "sha512-2lv/66T7e5yNyhAAC4NaKe5nVavzuGJQVVtRYLyQ2OI8tsJ61PMLlelehb0wi2Hx6+hT/OJUWZcw8MjlSRnxvw==",
 			"license": "MIT",
 			"dependencies": {
-				"punycode": "^2.3.1"
+				"punycode": "^2.3.0"
 			},
 			"engines": {
-				"node": ">=20"
+				"node": ">=14"
 			}
 		},
 		"node_modules/ts-api-utils": {
@@ -9404,6 +9617,15 @@
 				"tiny-inflate": "^1.0.0"
 			}
 		},
+		"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==",
+			"license": "MIT",
+			"engines": {
+				"node": ">= 4.0.0"
+			}
+		},
 		"node_modules/unplugin": {
 			"version": "1.16.1",
 			"resolved": "https://registry.npmjs.org/unplugin/-/unplugin-1.16.1.tgz",
@@ -9501,6 +9723,16 @@
 				"punycode": "^2.1.0"
 			}
 		},
+		"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==",
+			"license": "MIT",
+			"dependencies": {
+				"querystringify": "^2.1.1",
+				"requires-port": "^1.0.0"
+			}
+		},
 		"node_modules/util-deprecate": {
 			"version": "1.0.2",
 			"resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -9757,15 +9989,15 @@
 			"license": "MIT"
 		},
 		"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==",
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-4.0.0.tgz",
+			"integrity": "sha512-d+BFHzbiCx6zGfz0HyQ6Rg69w9k19nviJspaj4yNscGjrHu94sVP+aRm75yEbCh+r2/yR+7q6hux9LVtbuTGBw==",
 			"license": "MIT",
 			"dependencies": {
-				"xml-name-validator": "^5.0.0"
+				"xml-name-validator": "^4.0.0"
 			},
 			"engines": {
-				"node": ">=18"
+				"node": ">=14"
 			}
 		},
 		"node_modules/web-streams-polyfill": {
@@ -9794,46 +10026,37 @@
 			"license": "MIT"
 		},
 		"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==",
+			"version": "2.0.0",
+			"resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-2.0.0.tgz",
+			"integrity": "sha512-p41ogyeMUrw3jWclHWTQg1k05DSVXPLcVxRTYsXUk+ZooOCZLcoYgPZ/HL/D/N+uQPOtcp1me1WhBEaX02mhWg==",
 			"license": "MIT",
 			"dependencies": {
 				"iconv-lite": "0.6.3"
 			},
 			"engines": {
-				"node": ">=18"
+				"node": ">=12"
 			}
 		},
 		"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==",
+			"version": "3.0.0",
+			"resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-3.0.0.tgz",
+			"integrity": "sha512-nt+N2dzIutVRxARx1nghPKGv1xHikU7HKdfafKkLNLindmPU/ch3U31NOCGGA/dmPcmb1VlofO0vnKAcsm0o/Q==",
 			"license": "MIT",
 			"engines": {
-				"node": ">=18"
+				"node": ">=12"
 			}
 		},
 		"node_modules/whatwg-url": {
-			"version": "15.1.0",
-			"resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-15.1.0.tgz",
-			"integrity": "sha512-2ytDk0kiEj/yu90JOAp44PVPUkO9+jVhyf+SybKlRHSDlvOOZhdPIrr7xTH64l4WixO2cP+wQIcgujkGBPPz6g==",
+			"version": "12.0.1",
+			"resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-12.0.1.tgz",
+			"integrity": "sha512-Ed/LrqB8EPlGxjS+TrsXcpUond1mhccS3pchLhzSgPCnTimUCKj3IZE75pAs5m6heB2U2TMerKFUXheyHY+VDQ==",
 			"license": "MIT",
 			"dependencies": {
-				"tr46": "^6.0.0",
-				"webidl-conversions": "^8.0.0"
+				"tr46": "^4.1.1",
+				"webidl-conversions": "^7.0.0"
 			},
 			"engines": {
-				"node": ">=20"
-			}
-		},
-		"node_modules/whatwg-url/node_modules/webidl-conversions": {
-			"version": "8.0.0",
-			"resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-8.0.0.tgz",
-			"integrity": "sha512-n4W4YFyz5JzOfQeA8oN7dUYpR+MBP3PIUsn2jLjWXwK5ASUzt0Jc/A5sAUZoCYFJRGF0FBKJ+1JjN43rNdsQzA==",
-			"license": "BSD-2-Clause",
-			"engines": {
-				"node": ">=20"
+				"node": ">=14"
 			}
 		},
 		"node_modules/which": {
@@ -10014,12 +10237,12 @@
 			}
 		},
 		"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==",
+			"version": "4.0.0",
+			"resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-4.0.0.tgz",
+			"integrity": "sha512-ICP2e+jsHvAj2E2lIHxa5tjXRlKDJo4IdvPvCXbXQGdzSfmSpNVyIKMvoZHjDY9DP0zV17iI85o90vRFXNccRw==",
 			"license": "Apache-2.0",
 			"engines": {
-				"node": ">=18"
+				"node": ">=12"
 			}
 		},
 		"node_modules/xmlchars": {

package.json

@@ -28,6 +28,7 @@
 		"@tailwindcss/typography": "^0.5.9",
 		"@types/dompurify": "^3.0.5",
 		"@types/js-yaml": "^4.0.9",
+		"@types/jsdom": "^21.1.1",
 		"@types/katex": "^0.16.7",
 		"@types/mime-types": "^2.1.4",
 		"@types/minimist": "^1.2.5",
@@ -43,6 +44,7 @@
 		"eslint": "^8.28.0",
 		"eslint-config-prettier": "^8.5.0",
 		"eslint-plugin-svelte": "^2.45.1",
+		"isomorphic-dompurify": "2.13.0",
 		"js-yaml": "^4.1.0",
 		"minimist": "^1.2.8",
 		"mongodb-memory-server": "^10.1.2",
@@ -78,7 +80,7 @@
 		"highlight.js": "^11.7.0",
 		"husky": "^9.0.11",
 		"ip-address": "^9.0.5",
-		"jsdom": "^27.0.0",
+		"jsdom": "^22.0.0",
 		"json5": "^2.2.3",
 		"katex": "^0.16.21",
 		"lint-staged": "^15.2.7",

src/lib/components/CodeBlock.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import CopyToClipBoardBtn from "./CopyToClipBoardBtn.svelte";
-	import DOMPurify from "$lib/utils/dompurify";
+	import DOMPurify from "isomorphic-dompurify";
 	import HtmlPreviewModal from "./HtmlPreviewModal.svelte";
 	import PlayFilledAlt from "~icons/carbon/play-filled-alt";
 	import EosIconsLoading from "~icons/eos-icons/loading";

src/lib/components/chat/MarkdownRenderer.svelte

@@ -5,7 +5,7 @@
 	import type { IncomingMessage, OutgoingMessage } from "$lib/workers/markdownWorker";
 	import { browser } from "$app/environment";
 
-	import DOMPurify from "$lib/utils/dompurify";
+	import DOMPurify from "isomorphic-dompurify";
 	import { onMount } from "svelte";
 	import { updateDebouncer } from "$lib/utils/updates";
 

src/lib/utils/dompurify.ts

@@ -1,20 +0,0 @@
-// This file provides DOMPurify for both browser and server environments
-// In browser: uses dompurify directly
-// In server: creates a jsdom window and initializes dompurify with it
-
-import { browser } from "$app/environment";
-import dompurify from "dompurify";
-import { JSDOM } from "jsdom";
-
-let DOMPurifyInstance: ReturnType<typeof dompurify>;
-
-if (browser) {
-	// Browser: use dompurify directly
-	DOMPurifyInstance = dompurify;
-} else {
-	// Server: create jsdom window and initialize dompurify
-	const window = new JSDOM("<!DOCTYPE html>").window;
-	DOMPurifyInstance = dompurify(window as unknown as Window);
-}
-
-export default DOMPurifyInstance;

vite.config.ts

@@ -35,11 +35,6 @@ export default defineConfig({
 		// Using leading dot matches subdomains per Vite's host check logic
 		allowedHosts: ["huggingface.ngrok.io"],
 	},
-	build: {
-		rollupOptions: {
-			external: ["jsdom"],
-		},
-	},
 	optimizeDeps: {
 		include: ["uuid", "sharp", "clsx"],
 	},