The mui.ajax post submission is passed to the backend, and the backend reception is empty.

problem description

I encapsulated an ajax, call in the relevant page in app.js. I have now written down the passed parameters, but the back-end staff still can"t get the parameters I passed. What"s going on? I hope you can help me answer it. Thank you!

the environmental background of the problems and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)
app.js
owner.ajax_nocicle = function (url, data, cbk,err) {

    mui.ajax(url, {
        crossDomain: true,
        data: data?data:{},
        type: "POST",
        dataType: "json",
        timeout: 10 * 10000,
        headers: {
            "Authorization": this.getState().token
        },
        beforeSend: function() {
            //plus.nativeUI.showWaiting();
        },
        complete: function() {
            plus.nativeUI.closeWaiting();
        },
        success: cbk?cbk:function(){},
        error: err?err:function(xhr, type) {
            plus.nativeUI.closeWaiting();
            console.log("xhr:" + xhr);
            console.log("type:" + type);
            return mui.toast("");
            plus.nativeUI.closeWaiting();
        }
    });
}

page html
app.ajax (" http://61.50.187.156:8341/app/postData/union",{

                                        Url:app.config.zs_url,
                                        id:"10a0e35e-765e-4433-8e94-ddfb4b5a1cb5",
                                        mobile:"123333333",
                                        remark:"",
                                        childUrl:"v1/GhCardPackage/ReadPad",
                                        ServiceType:"2",
                                        MethodName:"Post"
                                },function(data){
                                    mui.toast(JSON.stringify(data));
                                });

what result do you expect? What is the error message actually seen?

the message returned now is that the interface has been entered, and the message returned to me is {message:" error"}. This prompt means that the passed parameter is empty. How can this happen

?
Mar.28,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eb3d7b-2486.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eb3d7b-2486.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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