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);
                }
            });
 
        },