diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index e2f0a4e492..edae1e91b2 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -565,7 +565,8 @@ function quote() {
 		os.post({
 			renote: appearNote.value,
 			channel: appearNote.value.channel,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
@@ -589,7 +590,8 @@ function quote() {
 	} else {
 		os.post({
 			renote: appearNote.value,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index 64559ef265..123e94c3e0 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -550,7 +550,8 @@ function quote() {
 		os.post({
 			renote: appearNote.value,
 			channel: appearNote.value.channel,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
@@ -574,7 +575,8 @@ function quote() {
 	} else {
 		os.post({
 			renote: appearNote.value,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
diff --git a/packages/frontend/src/components/MkNoteSub.vue b/packages/frontend/src/components/MkNoteSub.vue
index 9caed62ce2..45276839ad 100644
--- a/packages/frontend/src/components/MkNoteSub.vue
+++ b/packages/frontend/src/components/MkNoteSub.vue
@@ -339,7 +339,8 @@ function quote() {
 		os.post({
 			renote: appearNote.value,
 			channel: appearNote.value.channel,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: props.note.id,
 				userId: $i.id,
@@ -363,7 +364,8 @@ function quote() {
 	} else {
 		os.post({
 			renote: appearNote.value,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: props.note.id,
 				userId: $i.id,
diff --git a/packages/frontend/src/components/MkPostFormDialog.vue b/packages/frontend/src/components/MkPostFormDialog.vue
index 947c0ee4d0..cc84c6e0ff 100644
--- a/packages/frontend/src/components/MkPostFormDialog.vue
+++ b/packages/frontend/src/components/MkPostFormDialog.vue
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <template>
 <MkModal ref="modal" :preferType="'dialog'" @click="modal?.close()" @closed="onModalClosed()" @esc="modal?.close()">
-	<MkPostForm ref="form" :class="$style.form" v-bind="props" autofocus freezeAfterPosted @posted="onPosted" @cancel="modal?.close()" @esc="modal?.close()"/>
+	<MkPostForm ref="form" :class="$style.form" v-bind="props" autofocus freezeAfterPosted @posted="onPosted" @cancel="onCancel" @esc="modal?.close()"/>
 </MkModal>
 </template>
 
@@ -37,7 +37,7 @@ const props = withDefaults(defineProps<{
 });
 
 const emit = defineEmits<{
-	(ev: 'closed'): void;
+	(ev: 'closed', cancelled: boolean): void;
 }>();
 
 const modal = shallowRef<InstanceType<typeof MkModal>>();
@@ -47,10 +47,16 @@ function onPosted() {
 	modal.value?.close({
 		useSendAnimation: true,
 	});
+	emit('closed', false);
+}
+
+function onCancel() {
+	modal.value?.close();
+	emit('closed', true);
 }
 
 function onModalClosed() {
-	emit('closed');
+	emit('closed', true);
 }
 </script>
 
diff --git a/packages/frontend/src/components/SkNote.vue b/packages/frontend/src/components/SkNote.vue
index b02d902482..3d5c5f5fae 100644
--- a/packages/frontend/src/components/SkNote.vue
+++ b/packages/frontend/src/components/SkNote.vue
@@ -565,7 +565,8 @@ function quote() {
 		os.post({
 			renote: appearNote.value,
 			channel: appearNote.value.channel,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
@@ -589,7 +590,8 @@ function quote() {
 	} else {
 		os.post({
 			renote: appearNote.value,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
diff --git a/packages/frontend/src/components/SkNoteDetailed.vue b/packages/frontend/src/components/SkNoteDetailed.vue
index cca6c7a40c..5b85e21bac 100644
--- a/packages/frontend/src/components/SkNoteDetailed.vue
+++ b/packages/frontend/src/components/SkNoteDetailed.vue
@@ -559,7 +559,8 @@ function quote() {
 		os.post({
 			renote: appearNote.value,
 			channel: appearNote.value.channel,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
@@ -583,7 +584,8 @@ function quote() {
 	} else {
 		os.post({
 			renote: appearNote.value,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: appearNote.value.id,
 				userId: $i?.id,
diff --git a/packages/frontend/src/components/SkNoteSub.vue b/packages/frontend/src/components/SkNoteSub.vue
index c2986b2524..fac35191b9 100644
--- a/packages/frontend/src/components/SkNoteSub.vue
+++ b/packages/frontend/src/components/SkNoteSub.vue
@@ -353,7 +353,8 @@ function quote() {
 		os.post({
 			renote: appearNote.value,
 			channel: appearNote.value.channel,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: props.note.id,
 				userId: $i.id,
@@ -377,7 +378,8 @@ function quote() {
 	} else {
 		os.post({
 			renote: appearNote.value,
-		}).then(() => {
+		}).then((cancelled) => {
+			if (cancelled) return;
 			misskeyApi('notes/renotes', {
 				noteId: props.note.id,
 				userId: $i.id,
diff --git a/packages/frontend/src/os.ts b/packages/frontend/src/os.ts
index f6f4d62d50..95a0f06790 100644
--- a/packages/frontend/src/os.ts
+++ b/packages/frontend/src/os.ts
@@ -691,7 +691,7 @@ export function contextMenu(items: MenuItem[], ev: MouseEvent): Promise<void> {
 	}));
 }
 
-export function post(props: Record<string, any> = {}): Promise<void> {
+export function post(props: Record<string, any> = {}): Promise<void | boolean> {
 	pleaseLogin(undefined, (props.initialText || props.initialNote ? {
 		type: 'share',
 		params: {
@@ -709,8 +709,8 @@ export function post(props: Record<string, any> = {}): Promise<void> {
 		//       複数のpost formを開いたときに場合によってはエラーになる
 		//       もちろん複数のpost formを開けること自体Misskeyサイドのバグなのだが
 		const { dispose } = popup(MkPostFormDialog, props, {
-			closed: () => {
-				resolve();
+			closed: (cancelled) => {
+				resolve(cancelled);
 				dispose();
 			},
 		});