Merge remote-tracking branch 'origin/master' into fix-android-download-manager-cookies

Author: jacobmllr95

android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java

@@ -602,7 +602,25 @@ private void done(Response resp) {
 //                    ignored.printStackTrace();
                 }
 
-                RNFetchBlobFileResp rnFetchBlobFileResp = (RNFetchBlobFileResp) responseBody;
+                RNFetchBlobFileResp rnFetchBlobFileResp;
+
+                try {
+                    rnFetchBlobFileResp = (RNFetchBlobFileResp) responseBody;
+                } catch (ClassCastException ex) {
+                    // unexpected response type
+                    if (responseBody != null) {
+                        String responseBodyString = null;
+                        try {
+                            responseBodyString = responseBody.string();
+                        } catch(IOException exception) {
+                            exception.printStackTrace();
+                        }
+                        callback.invoke("Unexpected FileStorage response file: " + responseBodyString, null);
+                    } else {
+                        callback.invoke("Unexpected FileStorage response with no file.", null);
+                    }
+                    return;
+                }
 
                 if(rnFetchBlobFileResp != null && !rnFetchBlobFileResp.isDownloadComplete()){
                     callback.invoke("Download interrupted.", null);