fix(adapter): fix progress event emitting; (#6518)

lib/helpers/trackStream.js

@@ -1,5 +1,4 @@
 
-
 export const streamChunk = function* (chunk, chunkSize) {
   let len = chunk.byteLength;
 
@@ -28,25 +27,38 @@ export const trackStream = (stream, chunkSize, onProgress, onFinish, encode) =>
   const iterator = readBytes(stream, chunkSize, encode);
 
   let bytes = 0;
+  let done;
+  let _onFinish = (e) => {
+    if (!done) {
+      done = true;
+      onFinish && onFinish(e);
+    }
+  }
 
   return new ReadableStream({
-    type: 'bytes',
-
     async pull(controller) {
-      const {done, value} = await iterator.next();
+      try {
+        const {done, value} = await iterator.next();
 
-      if (done) {
-        controller.close();
-        onFinish();
-        return;
+        if (done) {
+         _onFinish();
+          controller.close();
+          return;
+        }
+
+        let len = value.byteLength;
+        if (onProgress) {
+          let loadedBytes = bytes += len;
+          onProgress(loadedBytes);
+        }
+        controller.enqueue(new Uint8Array(value));
+      } catch (err) {
+        _onFinish(err);
+        throw err;
       }
-
-      let len = value.byteLength;
-      onProgress && onProgress(bytes += len);
-      controller.enqueue(new Uint8Array(value));
     },
     cancel(reason) {
-      onFinish(reason);
+      _onFinish(reason);
       return iterator.return();
     }
   }, {