fix:

src/modules/18_command/components/DialogPreviewCommand.vue

@@ -174,6 +174,27 @@ async function fetchPDF(data: any, type: string = "docx?folder=command") {
     });
 }
 
+/** Navigate to previous page*/
+function goToPreviousPage() {
+  if (canGoPrevious.value) {
+    page.value--;
+  }
+}
+
+/** Navigate to next page*/
+function goToNextPage() {
+  if (canGoNext.value) {
+    page.value++;
+  }
+}
+
+function cleanupObjectUrl() {
+  if (currentObjectUrl.value) {
+    URL.revokeObjectURL(currentObjectUrl.value);
+    currentObjectUrl.value = null;
+  }
+}
+
 watch(
   () => modal.value,
   async () => {
@@ -188,6 +209,7 @@ watch(
           hideLoader();
         });
     } else {
+      cleanupObjectUrl();
       tab.value = "main";
       pdfSrc.value = undefined;
       page.value = 1;
@@ -195,24 +217,6 @@ watch(
   }
 );
 
-/**
- * Navigate to previous page
- */
-function goToPreviousPage() {
-  if (canGoPrevious.value) {
-    page.value--;
-  }
-}
-
-/**
- * Navigate to next page
- */
-function goToNextPage() {
-  if (canGoNext.value) {
-    page.value++;
-  }
-}
-
 /** check tab เมื่อมีการเปลี่ยน tab*/
 watch(
   () => tab.value,