diff --git a/.eslintrc.yaml b/.eslintrc.yaml
index f87a4149ac..878b74cba4 100644
--- a/.eslintrc.yaml
+++ b/.eslintrc.yaml
@@ -15,6 +15,7 @@ plugins:
   - eslint-plugin-no-jquery
   - eslint-plugin-sonarjs
   - eslint-plugin-custom-elements
+  - eslint-plugin-regexp
 
 env:
   es2022: true
@@ -472,6 +473,80 @@ rules:
   quote-props: [0]
   quotes: [2, single, {avoidEscape: true, allowTemplateLiterals: true}]
   radix: [2, as-needed]
+  regexp/confusing-quantifier: [2]
+  regexp/control-character-escape: [2]
+  regexp/hexadecimal-escape: [0]
+  regexp/letter-case: [0]
+  regexp/match-any: [2]
+  regexp/negation: [2]
+  regexp/no-contradiction-with-assertion: [0]
+  regexp/no-control-character: [0]
+  regexp/no-dupe-characters-character-class: [2]
+  regexp/no-dupe-disjunctions: [2]
+  regexp/no-empty-alternative: [2]
+  regexp/no-empty-capturing-group: [2]
+  regexp/no-empty-character-class: [0]
+  regexp/no-empty-group: [2]
+  regexp/no-empty-lookarounds-assertion: [2]
+  regexp/no-escape-backspace: [2]
+  regexp/no-extra-lookaround-assertions: [0]
+  regexp/no-invalid-regexp: [2]
+  regexp/no-invisible-character: [2]
+  regexp/no-lazy-ends: [2]
+  regexp/no-legacy-features: [2]
+  regexp/no-misleading-capturing-group: [0]
+  regexp/no-misleading-unicode-character: [0]
+  regexp/no-missing-g-flag: [2]
+  regexp/no-non-standard-flag: [2]
+  regexp/no-obscure-range: [2]
+  regexp/no-octal: [2]
+  regexp/no-optional-assertion: [2]
+  regexp/no-potentially-useless-backreference: [2]
+  regexp/no-standalone-backslash: [2]
+  regexp/no-super-linear-backtracking: [0]
+  regexp/no-super-linear-move: [0]
+  regexp/no-trivially-nested-assertion: [2]
+  regexp/no-trivially-nested-quantifier: [2]
+  regexp/no-unused-capturing-group: [0]
+  regexp/no-useless-assertions: [2]
+  regexp/no-useless-backreference: [2]
+  regexp/no-useless-character-class: [2]
+  regexp/no-useless-dollar-replacements: [2]
+  regexp/no-useless-escape: [2]
+  regexp/no-useless-flag: [2]
+  regexp/no-useless-lazy: [2]
+  regexp/no-useless-non-capturing-group: [2]
+  regexp/no-useless-quantifier: [2]
+  regexp/no-useless-range: [2]
+  regexp/no-useless-two-nums-quantifier: [2]
+  regexp/no-zero-quantifier: [2]
+  regexp/optimal-lookaround-quantifier: [2]
+  regexp/optimal-quantifier-concatenation: [0]
+  regexp/prefer-character-class: [0]
+  regexp/prefer-d: [0]
+  regexp/prefer-escape-replacement-dollar-char: [0]
+  regexp/prefer-lookaround: [0]
+  regexp/prefer-named-backreference: [0]
+  regexp/prefer-named-capture-group: [0]
+  regexp/prefer-named-replacement: [0]
+  regexp/prefer-plus-quantifier: [2]
+  regexp/prefer-predefined-assertion: [2]
+  regexp/prefer-quantifier: [0]
+  regexp/prefer-question-quantifier: [2]
+  regexp/prefer-range: [2]
+  regexp/prefer-regexp-exec: [2]
+  regexp/prefer-regexp-test: [2]
+  regexp/prefer-result-array-groups: [0]
+  regexp/prefer-star-quantifier: [2]
+  regexp/prefer-unicode-codepoint-escapes: [2]
+  regexp/prefer-w: [0]
+  regexp/require-unicode-regexp: [0]
+  regexp/sort-alternatives: [0]
+  regexp/sort-character-class-elements: [0]
+  regexp/sort-flags: [0]
+  regexp/strict: [2]
+  regexp/unicode-escape: [0]
+  regexp/use-ignore-case: [0]
   require-atomic-updates: [0]
   require-await: [0]
   require-unicode-regexp: [0]
diff --git a/docs/assets/js/search.js b/docs/assets/js/search.js
index 315a5ebd91..f731e0b224 100644
--- a/docs/assets/js/search.js
+++ b/docs/assets/js/search.js
@@ -138,8 +138,8 @@ function populateResults(result) {
 
 function render(templateString, data) {
   let conditionalMatches, copy;
-  const conditionalPattern = /\$\{\s*isset ([a-zA-Z]*) \s*\}(.*)\$\{\s*end\s*}/g;
-  // since loop below depends on re.lastInxdex, we use a copy to capture any manipulations whilst inside the loop
+  const conditionalPattern = /\$\{\s*isset ([a-zA-Z]*) \s*\}(.*)\$\{\s*end\s*\}/g;
+  // since loop below depends on re.lastIndex, we use a copy to capture any manipulations whilst inside the loop
   copy = templateString;
   while ((conditionalMatches = conditionalPattern.exec(templateString)) !== null) {
     if (data[conditionalMatches[1]]) {
diff --git a/package-lock.json b/package-lock.json
index 9a2f5dc578..d899903e4f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -65,6 +65,7 @@
         "eslint-plugin-import": "2.27.5",
         "eslint-plugin-jquery": "1.5.1",
         "eslint-plugin-no-jquery": "2.7.0",
+        "eslint-plugin-regexp": "1.14.0",
         "eslint-plugin-sonarjs": "0.19.0",
         "eslint-plugin-unicorn": "46.0.0",
         "eslint-plugin-vue": "9.11.0",
@@ -2927,6 +2928,15 @@
         "node": ">= 12"
       }
     },
+    "node_modules/comment-parser": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/comment-parser/-/comment-parser-1.3.1.tgz",
+      "integrity": "sha512-B52sN2VNghyq5ofvUsqZjmk6YkihBX5vMSChmSK9v4ShjKf3Vk5Xcmgpw4o+iIgtrnM/u5FiMpz9VKb8lpBveA==",
+      "dev": true,
+      "engines": {
+        "node": ">= 12.0.0"
+      }
+    },
     "node_modules/commondir": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
@@ -4560,6 +4570,28 @@
         "eslint": ">=2.3.0"
       }
     },
+    "node_modules/eslint-plugin-regexp": {
+      "version": "1.14.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-regexp/-/eslint-plugin-regexp-1.14.0.tgz",
+      "integrity": "sha512-5+bBSsRTTtkSf8+/iNSjiOW6qbjAdGyqv88HxPaBNFKxROK+UAdOGDl5Jr+csV5wW2BuOOvaG82zsvTriQBRFA==",
+      "dev": true,
+      "dependencies": {
+        "@eslint-community/eslint-utils": "^4.2.0",
+        "@eslint-community/regexpp": "^4.4.0",
+        "comment-parser": "^1.1.2",
+        "grapheme-splitter": "^1.0.4",
+        "jsdoctypeparser": "^9.0.0",
+        "refa": "^0.11.0",
+        "regexp-ast-analysis": "^0.6.0",
+        "scslre": "^0.2.0"
+      },
+      "engines": {
+        "node": "^12 || >=14"
+      },
+      "peerDependencies": {
+        "eslint": ">=6.0.0"
+      }
+    },
     "node_modules/eslint-plugin-sonarjs": {
       "version": "0.19.0",
       "resolved": "https://registry.npmjs.org/eslint-plugin-sonarjs/-/eslint-plugin-sonarjs-0.19.0.tgz",
@@ -6038,6 +6070,18 @@
         "js-yaml": "bin/js-yaml.js"
       }
     },
+    "node_modules/jsdoctypeparser": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/jsdoctypeparser/-/jsdoctypeparser-9.0.0.tgz",
+      "integrity": "sha512-jrTA2jJIL6/DAEILBEh2/w9QxCuwmvNXIry39Ay/HVfhE3o2yVV0U44blYkqdHA/OKloJEqvJy0xU+GSdE2SIw==",
+      "dev": true,
+      "bin": {
+        "jsdoctypeparser": "bin/jsdoctypeparser"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/jsdom": {
       "version": "21.1.1",
       "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-21.1.1.tgz",
@@ -7934,11 +7978,36 @@
         "node": ">=8"
       }
     },
+    "node_modules/refa": {
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/refa/-/refa-0.11.0.tgz",
+      "integrity": "sha512-486O8/pQXwj9jV0mVvUnTsxq0uknpBnNJ0eCUhkZqJRQ8KutrT1PhzmumdCeM1hSBF2eMlFPmwECRER4IbKXlQ==",
+      "dev": true,
+      "dependencies": {
+        "@eslint-community/regexpp": "^4.5.0"
+      },
+      "engines": {
+        "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
+      }
+    },
     "node_modules/regenerator-runtime": {
       "version": "0.13.11",
       "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
       "integrity": "sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg=="
     },
+    "node_modules/regexp-ast-analysis": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/regexp-ast-analysis/-/regexp-ast-analysis-0.6.0.tgz",
+      "integrity": "sha512-OLxjyjPkVH+rQlBLb1I/P/VTmamSjGkvN5PTV5BXP432k3uVz727J7H29GA5IFiY0m7e1xBN7049Wn59FY3DEQ==",
+      "dev": true,
+      "dependencies": {
+        "@eslint-community/regexpp": "^4.5.0",
+        "refa": "^0.11.0"
+      },
+      "engines": {
+        "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
+      }
+    },
     "node_modules/regexp-tree": {
       "version": "0.1.25",
       "resolved": "https://registry.npmjs.org/regexp-tree/-/regexp-tree-0.1.25.tgz",
@@ -8247,6 +8316,17 @@
         "url": "https://opencollective.com/webpack"
       }
     },
+    "node_modules/scslre": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/scslre/-/scslre-0.2.0.tgz",
+      "integrity": "sha512-4hc49fUMmX3jM0XdFUAPBrs1xwEcdHa0KyjEsjFs+Zfc66mpFpq5YmRgDtl+Ffo6AtJIilfei+yKw8fUn3N88w==",
+      "dev": true,
+      "dependencies": {
+        "@eslint-community/regexpp": "^4.5.0",
+        "refa": "^0.11.0",
+        "regexp-ast-analysis": "^0.6.0"
+      }
+    },
     "node_modules/semver": {
       "version": "7.5.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.0.tgz",
diff --git a/package.json b/package.json
index ae3b7446fe..05b9fed90e 100644
--- a/package.json
+++ b/package.json
@@ -65,6 +65,7 @@
     "eslint-plugin-import": "2.27.5",
     "eslint-plugin-jquery": "1.5.1",
     "eslint-plugin-no-jquery": "2.7.0",
+    "eslint-plugin-regexp": "1.14.0",
     "eslint-plugin-sonarjs": "0.19.0",
     "eslint-plugin-unicorn": "46.0.0",
     "eslint-plugin-vue": "9.11.0",
diff --git a/web_src/js/features/codeeditor.js b/web_src/js/features/codeeditor.js
index 40bc6d618f..f003933262 100644
--- a/web_src/js/features/codeeditor.js
+++ b/web_src/js/features/codeeditor.js
@@ -136,7 +136,7 @@ function togglePreviewDisplay(previewable) {
   if (!previewTab) return;
 
   if (previewable) {
-    const newUrl = (previewTab.getAttribute('data-url') || '').replace(/(.*)\/.*/i, `$1/markup`);
+    const newUrl = (previewTab.getAttribute('data-url') || '').replace(/(.*)\/.*/, `$1/markup`);
     previewTab.setAttribute('data-url', newUrl);
     previewTab.style.display = '';
   } else {
diff --git a/web_src/js/utils.js b/web_src/js/utils.js
index 8e15683908..25094deea2 100644
--- a/web_src/js/utils.js
+++ b/web_src/js/utils.js
@@ -32,7 +32,7 @@ export function isDarkTheme() {
 
 // strip <tags> from a string
 export function stripTags(text) {
-  return text.replace(/<[^>]*>?/gm, '');
+  return text.replace(/<[^>]*>?/g, '');
 }
 
 // searches the inclusive range [minValue, maxValue].