Axios cross-domain problem

1. I set

in main.js 
axios.defaults.withCredentials=true
axios.defaults.crossDomain=true
axios.defaults.headers.post["Content-Type"] = "application/x-www-form-urlencoded"

when used by other components, once with parameters such as 

self.axios.post("http://pj.dianmila.com/supersolid/supersolid_api.php?a=list",{offset:self.swiperlen},{headers: {"Content-Type": "application/x-www-form-urlencoded"}}).then(function(res) {
                        var datajson = res.data;
..................
                            }
                        } 
                    }).catch(function (error) {
                    alert("")
                console.log(error);
            });

Why do you ask for advice

if you can"t cross-domain without the following headers setting?

2. When I set headers, the passed parameter is {"offset":5}. I want to directly offset:5, like ajax, which is not included in the object, how to implement it, and what configuration options should be added

topic description

sources of topics and their own ideas

related codes

/ / Please paste the code text below (do not replace the code with pictures)

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

Javascript
May.12,2021 
axios.post('http://pj.dianmila.com/supersolid/supersolid_api.php?a=list',{offset:1},{
  headers: {'Content-Type':'application/x-www-form-urlencoded'},
  transformRequest: [function (data) {
    return Qs.stringify(data)
  }],
}).then(function(res) {
    console.log(res)
}).catch(function (error) {
    console.log(error);
})

transformRequest: [function (data) {
    return Qs.stringify(data)
  }],

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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-64f5-1b34041-2bed7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b34041-2bed7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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