uni.downloadFile微信小程序在ios真机上报错？ 求解

uni.downloadFile({  
        url: "",  
        success: res => {  
          uni.openDocument({  
            filePath: res.tempFilePath,  
            showMenu: true,  
            success: () => {  
            },  
            fail: () => {  
              uni.showToast({title: "文件打开失败", icon: "none"});  
            },  
          });  
        },  
        fail: () => {  
          uni.showToast({title: "文件下载失败", icon: "none"});  
        },  
      });

直接报以下错误（下载地址有的，不便贴上来）

index.vue?2676:1 MiniProgramError
n.replace is not a function. (In 'n.replace(/\;([^\s\;]?(?=\=))/gi,",$1")', 'n.replace' is undefined)
TypeError: n.replace is not a function. (In 'n.replace(/\;([^\s\;]?(?=\=))/gi,",$1")', 'n.replace' is undefined)
@https://usr//app-service.js:5632:10487
@https://lib/WAServiceMainContext.js:1:2656074
kn@https://lib/WASubContext.js:1:335639
Tnt@https://lib/WAServiceMainContext.js:1:2656060
@https://lib/WAServiceMainContext.js:1:1294171
at <api downloadFile success callback function>
Rc@https://lib/WAServiceMainContext.js:1:943425
@https://lib/WAServiceMainContext.js:1:1025749
at <NetworkDownload4success callback function>
$m@https://lib/WAServiceMainContext.js:1:996129
forEach@[native code]
emit@https://lib/WAServiceMainContext.js:1:996770
u@https://lib/WAServiceMainContext.js:1:1027383
eb@https://lib/WAServiceMainContext.js:1:1028738
@https://lib/WAServiceMainContext.js:1:1029362
@https://lib/WAServiceMainContext.js:1:917248
@https://lib/WAServiceMainContext.js:1:907153
emit@https://lib/WAServiceMainContext.js:1:377511
emit@[native code]
emit@https://lib/WAServiceMainContext.js:1:376883
subscribeHandler@https://lib/WAServiceMainContext.js:1:385313
@[native code]
global @ index.vue?2676:1