Upload to azure blob crash on large files

[SanaaAfifi]

Hello I want to upload a file using chunks to azure blob storage , the multiple c hunks crash and the upload is not compeleted any help

submitFlow: function () { 
                $scope.blockIds = [];
                $scope.fileTargetUrl =  MyoFileUpload.getUploadFileURL($scope.fileManager.getFlowFile())
                $scope.flowObj.flow.upload();
            }, 

preprocess: function (chunk) {

                const value = create_UUID();
                const blockId = btoa(value);
                $scope.blockIds.push(blockId);
                chunk.flowObj.opts.target =
                $scope.fileTargetUrl  +
                  `&comp=block&blockid=${blockId}`;
                  var flowFile = chunk.fileObj;
                  var originalpxr = chunk.prepareXhrRequest;
                  chunk.prepareXhrRequest = function (method, isTest, paramsMethod, blob) {
                      var data = originalpxr.apply(this, arguments);
                      data = this.fileObj.file;
                      this.flowObj.opts.query = {};
                      return data;}
                chunk.preprocessFinished();
              },
uploadCompleted :function()
              { 
                          if($scope.fileManager.isCompleted)
                {  
                                    MyoFileUpload.commitChunksList($scope.blockIds,$scope.fileTargetUrl );
                }
              },

commitChunksList(blockIds, url)
        { 
            var uri = url + '&comp=blocklist';
            console.log(uri);
            var requestBody = '<?xml version="1.0" encoding="utf-8"?><BlockList>';
            for (var i = 0; i < blockIds.length; i++) {
                requestBody += '<Latest>' + blockIds[i] + '</Latest>';
            }
            requestBody += '</BlockList>';
            console.log(requestBody);
            $.ajax({
                url: uri,
                type: "PUT",
                data: requestBody,

                success: function (data, status) {
                    console.log(data);
                    console.log(status);
                },
                error: function (xhr, desc, err) {
                    console.log(desc);
                    console.log(err);
                }
            });

        },