修改下载证书问题

src/modules/my/views/Cert.vue

@@ -2,6 +2,20 @@
 const route = useRoute()
 
 const src: any = $ref(route.query?.c || '')
+
+function downLoadEwm(url: any) {
+  const x = new window.XMLHttpRequest()
+  x.open('GET', url, true)
+  x.responseType = 'blob'
+  x.onload = () => {
+    const url = window.URL.createObjectURL(x.response)
+    const a = document.createElement('a')
+    a.href = url
+    a.download = '我的电子学习证明'
+    a.click()
+  }
+  x.send()
+}
 </script>
 
 <template>
@@ -9,7 +23,7 @@ const src: any = $ref(route.query?.c || '')
   <AppCard>
     <img :src="src" />
   </AppCard>
-  <a href="#" :download="src" class="btn">
+  <a href="#" @click="downLoadEwm(src)" class="btn">
     下载电子学习证明
     <!-- <div class="btn">下载电子学习证明</div> -->
   </a>