perf: Downloading files does not trigger the beforeunload event

src/components/Table/ListTable/TableAction/ExportDialog.vue

@@ -48,6 +48,7 @@
 import Dialog from '@/components/Dialog/index.vue'
 import { createSourceIdCache } from '@/api/common'
 import * as queryUtil from '@/components/Table/DataTable/compenents/el-data-table/utils/query'
+import { download } from '@/utils/common'
 
 export default {
   name: 'ExportDialog',
@@ -187,10 +188,7 @@ export default {
       })
     },
     downloadCsv(url) {
-      const a = document.createElement('a')
-      a.href = url
-      a.click()
-      window.URL.revokeObjectURL(url)
+      download(url)
     },
     async defaultPerformExport(selectRows, exportOption, q, exportTypeOption) {
       const url = (process.env.VUE_APP_ENV === 'production') ? (`${this.url}`) : (`${process.env.VUE_APP_BASE_API}${this.url}`)

src/components/Table/ListTable/TableAction/ImportDialog.vue

@@ -68,7 +68,7 @@
 <script>
 import Dialog from '@/components/Dialog/index.vue'
 import ImportTable from '@/components/Table/ListTable/TableAction/ImportTable.vue'
-import { getErrorResponseMsg } from '@/utils/common'
+import { download, getErrorResponseMsg } from '@/utils/common'
 import { createSourceIdCache } from '@/api/common'
 
 export default {
@@ -221,10 +221,7 @@ export default {
       this.$message.success(msg)
     },
     downloadCsv(url) {
-      const a = document.createElement('a')
-      a.href = url
-      a.click()
-      window.URL.revokeObjectURL(url)
+      download(url)
     },
     async handleImportConfirm() {
       await this.$refs['importTable'].performUpload()

src/utils/common.js

@@ -363,13 +363,19 @@ export function downloadText(content, filename) {
 }
 
 export function download(downloadUrl, filename) {
+  const iframe = document.createElement('iframe')
+  iframe.style.display = 'none'
+  document.body.appendChild(iframe)
   const a = document.createElement('a')
   a.href = downloadUrl
   if (filename) {
     a.download = filename
   }
+  iframe.contentWindow.document.body.appendChild(a)
   a.click()
-  window.URL.revokeObjectURL(downloadUrl)
+  setTimeout(() => {
+    document.body.removeChild(iframe)
+  }, 1000 * 60 * 30) // If you can't download it in half an hour, don't download it.
 }
 
 export function diffObject(object, base) {

src/views/sessions/CommandList/BaseList.vue

@@ -22,6 +22,7 @@ import isFalsey from '@/components/Table/DataTable/compenents/el-data-table/util
 import deepmerge from 'deepmerge'
 import * as queryUtil from '@/components/Table/DataTable/compenents/el-data-table/utils/query'
 import { createSourceIdCache } from '@/api/common'
+import { download } from '@/utils/common'
 
 export default {
   name: 'CommandList',
@@ -144,10 +145,7 @@ export default {
               queryUtil.stringify(query, '=', '&')
             url = url + queryStr
             this.$log.debug('Export url: ', this.url, '=>', url)
-            const a = document.createElement('a')
-            a.href = url
-            a.click()
-            window.URL.revokeObjectURL(url + queryStr)
+            download(url + queryStr)
           }
         }
       },