关于H5使用web直传失败的问题求助

你好，代码如下，运行ios模拟器时将 client.multipartUpload上传请求直接跳过，改去执行catch
var uploadFile = function (client) {
        var file = document.getElementById("publishFile").files[0];
        console.log("---------"+file);
        console.log("token--------------" + token);
        console.log(file.name + ' => ' + key);
        var body = 'token=' + token + '&infoId=' + $rootScope.infoId + '&type=2&imageUrls=http://bucket名字.oss-cn-shanghai.aliyuncs.com/' + key;

        var contentLength = body.length;
        console.log("body ========" + body);
        console.log("bodyLength = " + contentLength);

        return client.multipartUpload(key, file, {
          //progress: progress,
          headers: {
            'x-oss-callback': encodeCallback({
              url: 'http://服务器地址/oss/callback',
              //query: {user: 'js-sdk'},
              //contentType: 'application/json',
              body: body,
              contentLength: contentLength
            }),
            'Access-Control-Allow-Origin' : '*'
          }
        }).then(function (res) {
          console.log('upload success: %j', res);
          console.log(res.data);
          $ionicLoading.hide();
          if (res.data.code == 0) {
            UtilsService.alertShowOne("操作成功，前往首页", function () {
              $state.go("tab.homePage");
            });
          } else {
            UtilsService.alertShowOne("信息发布成功，上传失败图片无法显示",function(){
              var token = localStorage.getItem("token");
              var data = {
                infoId:$rootScope.infoId,
                token:token
              };
              RequestService.request(mConfig.updateInfoImg_url,data).then(function(value){
                console.log("updateInfoImg_url成功");
                $state.go("tab.homePage");
              });
            });
          }
        var uploadFile = function (client) {
        var file = document.getElementById("publishFile").files[0];
        console.log("---------"+file);
        console.log("token--------------" + token);
        console.log(file.name + ' => ' + key);
        var body = 'token=' + token + '&infoId=' + $rootScope.infoId + '&type=2&imageUrls=http://bucket名字.oss-cn-shanghai.aliyuncs.com/' + key;

        var contentLength = body.length;
        console.log("body ========" + body);
        console.log("bodyLength = " + contentLength);
        return client.multipartUpload(key, file, {
          //progress: progress,
          headers: {
            'x-oss-callback': encodeCallback({
              url: 'http://服务器IP地址/oss/callback',
              //query: {user: 'js-sdk'},
              //contentType: 'application/json',
              body: body,
              contentLength: contentLength
            }),
            'Access-Control-Allow-Origin' : '*'
          }
        }).then(function (res) {
          console.log('upload success: %j', res);
          console.log(res.data);
          $ionicLoading.hide();
          if (res.data.code == 0) {
            UtilsService.alertShowOne("操作成功，前往首页", function () {
              $state.go("tab.homePage");
            });
          } else {
            UtilsService.alertShowOne("信息发布成功，上传失败图片无法显示",function(){
              var token = localStorage.getItem("token");
              var data = {
                infoId:$rootScope.infoId,
                token:token
              };
              RequestService.request(mConfig.updateInfoImg_url,data).then(function(value){
                console.log("updateInfoImg_url成功");
                $state.go("tab.homePage");
              });
            });
          }；

出错有什么信息吗？　比如上传失败，oss报了什么错