将斑马打印机集成在vue中,不能够发送请求
function n(e, n) {
// e 请求的方式 ;
// n 请求的地址
var i = new XMLHttpRequest;
return "withCredentials" in i ? i.open(e, n, !0) : "undefined" != typeof XDomainRequest ? (i =new XDomainRequest, i.open(e, n)) : i = null, i
}
function i(e, n, i, t) {
return void 0 != e && (void 0 == i && (i = e.sendFinishedCallback), void 0 == t && (t = e
.sendErrorCallback)), n.onreadystatechange = function() {
n.readyState === XMLHttpRequest.DONE && 200 === n.status ? i(n.responseText) : n.readyState ===
XMLHttpRequest.DONE && t(n.responseText)
}, n
}
这两个方法没有返数据,在network看不见请求