bug fixed

projects/ucap-webmessenger-api-common/src/lib/services/common-api.service.ts

@@ -254,16 +254,22 @@ export class CommonApiService {
   public massTalkSave(
     req: MassTalkSaveRequest
   ): Observable<MassTalkSaveResponse> {
-    return this.httpClient
-      .post<any>(
-        this.urls.massTalkSave,
-        {},
-        {
-          params: encodeMassTalkSave(req),
-          responseType: 'text' as 'json'
+    const httpReq = new HttpRequest(
+      'POST',
+      this.urls.massTalkSave,
+      encodeMassTalkSave(req),
+      { reportProgress: true, responseType: 'text' as 'json' }
+    );
+
+    return this.httpClient.request(httpReq).pipe(
+      filter(event => {
+        if (event instanceof HttpResponse) {
+          return true;
         }
-      )
-      .pipe(map(res => decodeMassTalkSave(res)));
+        return false;
+      }),
+      map(res => decodeMassTalkSave((res as HttpResponse<any>).body))
+    );
   }
 
   public transMassTalkDownload(