diff --git a/packages/frontend-embed/src/pages/clip.vue b/packages/frontend-embed/src/pages/clip.vue
index 7658e8200f..441a3c64ec 100644
--- a/packages/frontend-embed/src/pages/clip.vue
+++ b/packages/frontend-embed/src/pages/clip.vue
@@ -51,7 +51,7 @@ import { misskeyApi } from '@/misskey-api.js';
 import { i18n } from '@/i18n.js';
 import { serverMetadata } from '@/server-metadata.js';
 import { url, instanceName } from '@@/js/config.js';
-import { isLink } from '@/to-be-shared/is-link.js';
+import { isLink } from '@@/js/is-link.js';
 import { defaultEmbedParams } from '@@/js/embed-page.js';
 import { DI } from '@/di.js';
 
diff --git a/packages/frontend-embed/src/pages/tag.vue b/packages/frontend-embed/src/pages/tag.vue
index 61a25c80ed..3612e0fc1f 100644
--- a/packages/frontend-embed/src/pages/tag.vue
+++ b/packages/frontend-embed/src/pages/tag.vue
@@ -47,7 +47,7 @@ import EmTimelineContainer from '@/components/EmTimelineContainer.vue';
 import { i18n } from '@/i18n.js';
 import { serverMetadata } from '@/server-metadata.js';
 import { url, instanceName } from '@@/js/config.js';
-import { isLink } from '@/to-be-shared/is-link.js';
+import { isLink } from '@@/js/is-link.js';
 import { DI } from '@/di.js';
 import { defaultEmbedParams } from '@@/js/embed-page.js';
 
diff --git a/packages/frontend-embed/src/to-be-shared/is-link.ts b/packages/frontend-shared/js/is-link.ts
similarity index 100%
rename from packages/frontend-embed/src/to-be-shared/is-link.ts
rename to packages/frontend-shared/js/is-link.ts
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index c271f11d73..eca94e99d8 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -163,6 +163,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { computed, inject, onMounted, ref, shallowRef, Ref, watch, provide } from 'vue';
 import * as mfm from 'mfm-js';
 import * as Misskey from 'misskey-js';
+import { isLink } from '@@/js/is-link.js';
 import MkNoteSub from '@/components/MkNoteSub.vue';
 import MkNoteHeader from '@/components/MkNoteHeader.vue';
 import MkNoteSimple from '@/components/MkNoteSimple.vue';
@@ -506,16 +507,6 @@ function onContextmenu(ev: MouseEvent): void {
 		return;
 	}
 
-	const isLink = (el: HTMLElement): boolean => {
-		if (el.tagName === 'A') return true;
-		// 再生速度の選択などのために、Audio要素のコンテキストメニューはブラウザデフォルトとする。
-		if (el.tagName === 'AUDIO') return true;
-		if (el.parentElement) {
-			return isLink(el.parentElement);
-		}
-		return false;
-	};
-
 	if (ev.target && isLink(ev.target as HTMLElement)) return;
 	if (window.getSelection()?.toString() !== '') return;
 
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index 205bccf3ab..1867f82c0f 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -199,6 +199,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { computed, inject, onMounted, provide, ref, shallowRef } from 'vue';
 import * as mfm from 'mfm-js';
 import * as Misskey from 'misskey-js';
+import { isLink } from '@@/js/is-link.js';
 import MkNoteSub from '@/components/MkNoteSub.vue';
 import MkNoteSimple from '@/components/MkNoteSimple.vue';
 import MkReactionsViewer from '@/components/MkReactionsViewer.vue';
@@ -468,14 +469,6 @@ function toggleReact() {
 }
 
 function onContextmenu(ev: MouseEvent): void {
-	const isLink = (el: HTMLElement): boolean => {
-		if (el.tagName === 'A') return true;
-		if (el.parentElement) {
-			return isLink(el.parentElement);
-		}
-		return false;
-	};
-
 	if (ev.target && isLink(ev.target as HTMLElement)) return;
 	if (window.getSelection()?.toString() !== '') return;
 
diff --git a/packages/frontend/src/components/MkWidgets.vue b/packages/frontend/src/components/MkWidgets.vue
index 7550edd120..0c51cfa9ce 100644
--- a/packages/frontend/src/components/MkWidgets.vue
+++ b/packages/frontend/src/components/MkWidgets.vue
@@ -57,6 +57,7 @@ import MkButton from '@/components/MkButton.vue';
 import { widgets as widgetDefs } from '@/widgets/index.js';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
+import { isLink } from '@@/js/is-link.js';
 
 const Sortable = defineAsyncComponent(() => import('vuedraggable').then(x => x.default));
 
@@ -98,13 +99,6 @@ const updateWidget = (id, data) => {
 
 function onContextmenu(widget: Widget, ev: MouseEvent) {
 	const element = ev.target as HTMLElement | null;
-	const isLink = (el: HTMLElement): boolean => {
-		if (el.tagName === 'A') return true;
-		if (el.parentElement) {
-			return isLink(el.parentElement);
-		}
-		return false;
-	};
 	if (element && isLink(element)) return;
 	if (element && (['INPUT', 'TEXTAREA', 'IMG', 'VIDEO', 'CANVAS'].includes(element.tagName) || element.attributes['contenteditable'])) return;
 	if (window.getSelection()?.toString() !== '') return;
diff --git a/packages/frontend/src/scripts/is-link.ts b/packages/frontend/src/scripts/is-link.ts
deleted file mode 100644
index 946f86400e..0000000000
--- a/packages/frontend/src/scripts/is-link.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-export function isLink(el: HTMLElement) {
-	if (el.tagName === 'A') return true;
-	if (el.parentElement) {
-		return isLink(el.parentElement);
-	}
-	return false;
-}
diff --git a/packages/frontend/src/ui/classic.vue b/packages/frontend/src/ui/classic.vue
index b26ff7cdd5..fa04409d2d 100644
--- a/packages/frontend/src/ui/classic.vue
+++ b/packages/frontend/src/ui/classic.vue
@@ -57,6 +57,8 @@ import { defaultStore } from '@/store.js';
 import { i18n } from '@/i18n.js';
 import { miLocalStorage } from '@/local-storage.js';
 import { mainRouter } from '@/router/main.js';
+import { isLink } from '@@/js/is-link.js';
+
 const XHeaderMenu = defineAsyncComponent(() => import('./classic.header.vue'));
 const XWidgets = defineAsyncComponent(() => import('./universal.widgets.vue'));
 
@@ -104,12 +106,6 @@ function top() {
 }
 
 function onContextmenu(ev: MouseEvent) {
-	const isLink = (el: HTMLElement) => {
-		if (el.tagName === 'A') return true;
-		if (el.parentElement) {
-			return isLink(el.parentElement);
-		}
-	};
 	if (isLink(ev.target)) return;
 	if (['INPUT', 'TEXTAREA', 'IMG', 'VIDEO', 'CANVAS'].includes(ev.target.tagName) || ev.target.attributes['contenteditable']) return;
 	if (window.getSelection().toString() !== '') return;
diff --git a/packages/frontend/src/ui/deck/main-column.vue b/packages/frontend/src/ui/deck/main-column.vue
index e7ecf7fd20..f8c712c371 100644
--- a/packages/frontend/src/ui/deck/main-column.vue
+++ b/packages/frontend/src/ui/deck/main-column.vue
@@ -27,6 +27,7 @@ import { i18n } from '@/i18n.js';
 import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { useScrollPositionManager } from '@/nirax.js';
 import { getScrollContainer } from '@@/js/scroll.js';
+import { isLink } from '@@/js/is-link.js';
 import { mainRouter } from '@/router/main.js';
 
 defineProps<{
@@ -52,12 +53,6 @@ function back() {
 function onContextmenu(ev: MouseEvent) {
 	if (!ev.target) return;
 
-	const isLink = (el: HTMLElement) => {
-		if (el.tagName === 'A') return true;
-		if (el.parentElement) {
-			return isLink(el.parentElement);
-		}
-	};
 	if (isLink(ev.target as HTMLElement)) return;
 	if (['INPUT', 'TEXTAREA', 'IMG', 'VIDEO', 'CANVAS'].includes((ev.target as HTMLElement).tagName) || (ev.target as HTMLElement).attributes['contenteditable']) return;
 	if (window.getSelection()?.toString() !== '') return;
diff --git a/packages/frontend/src/ui/universal.vue b/packages/frontend/src/ui/universal.vue
index 8eee68a0a3..a2a79c74a1 100644
--- a/packages/frontend/src/ui/universal.vue
+++ b/packages/frontend/src/ui/universal.vue
@@ -111,6 +111,7 @@ import { miLocalStorage } from '@/local-storage.js';
 import { CURRENT_STICKY_BOTTOM } from '@@/js/const.js';
 import { useScrollPositionManager } from '@/nirax.js';
 import { mainRouter } from '@/router/main.js';
+import { isLink } from '@@/js/is-link.js';
 
 const XWidgets = defineAsyncComponent(() => import('./universal.widgets.vue'));
 const XSidebar = defineAsyncComponent(() => import('@/ui/_common_/navbar.vue'));
@@ -195,12 +196,6 @@ onMounted(() => {
 });
 
 const onContextmenu = (ev) => {
-	const isLink = (el: HTMLElement) => {
-		if (el.tagName === 'A') return true;
-		if (el.parentElement) {
-			return isLink(el.parentElement);
-		}
-	};
 	if (isLink(ev.target)) return;
 	if (['INPUT', 'TEXTAREA', 'IMG', 'VIDEO', 'CANVAS'].includes(ev.target.tagName) || ev.target.attributes['contenteditable']) return;
 	if (window.getSelection()?.toString() !== '') return;