Question

我正在使用Polymer 1.7.0。如何在<iron-form>中发送请求标头？

我试过了：

form.addEventListener('iron-form-presubmit', function(event) {
    var headers = {'akash':'akash'};
    event.target.request.requestHeaders = headers;
    console.log(event.target.request.requestHeaders);
});

记录了以下文本，但我的标题未出现在请求中。

console.log(event.target.request.requestHeaders); ==＆gt; "Object {content-type: "application/x-www-form-urlencoded"}"

Answer 1

<iron-form>.request属性为<iron-ajax>，而<iron-ajax>.requestHeaders实际上不是属于可设置属性。请改用<iron-ajax>.headers属性

form.addEventListener('iron-form-presubmit', function(event) {
  var headers = {'akash':'akash'};
  event.target.request.headers = headers;
});

codepen

Answer 2

我们可以使用以下两种方式添加标题：

<form is="iron-form" id="form" method="POST" action="/" on-iron-form-response="responseHandler" on-iron-form-error="errorHandler" headers = '{"akash":"akash"}'>

<template> <content></content> <div class="layout vertical parent-style"> <form is="iron-form" id="form" method="POST" action="/" on-iron-form-response="responseHandler" on-iron-form-error="errorHandler"> </form> </div>

`

function handleLoginAction(event)
 {
    var form = Polymer.dom(event).localTarget.parentElement.parentElement;  // Get Form ref from DOM.

    form.headers = "{'akash':'akash'}";

    form.submit();
 }

form.addEventListener('iron-form-presubmit', function(event) {
console.log("Headers--------------");
console.log(event.target.request.requestHeaders);   // {'akash':'akash'}
});


 </script>
</template>`

如何以＆＃34;铁形式发送请求标题＆＃34;？

2 个答案: