uni-app JSON.parse ()转换失败

本地环境上传图片正常，部署到云主机上就会出错

VM1844:1 thirdScriptError
Unexpected token  in JSON at position 0;at api uploadFile success callback function
SyntaxError: Unexpected token  in JSON at position 0
at JSON.parse (<anonymous>)
at success (http://127.0.0.1:25900/appservice/pages/test/test3.js:269:38)
at Function.o.(anonymous function) (http://127.0.0.1:25900/appservice/dev/WAService.js:1:11

代码如下：

            success: (uploadFileRes) => {  
                    //uploadFileRes = JSON.parse(uploadFileRes.data);  
                    console.log(uploadFileRes);  
                    uploadFileRes = JSON.parse(uploadFileRes.data);                       
                    console.log(uploadFileRes);  
                    if (uploadFileRes.status != 'ok') {  
                        console.log(uploadFileRes);  
                        uni.showToast({  
                            title: "上传图片失败,请重试!",  
                            icon: "none"  
                        });  
                        return false;  
                    }  

麻烦问下，为什么本地环境和云主机上会出现不同的情况，我应该怎么来处理呢