X域表单POST在Internet Explorer 9中成为GET

Question

I'm trying to POST a form to another subdomain in my company using javascript. The address is to an API that programatically generates a PDF and returns it "inline" so that instead of going to the Downloads folder it opens in a new tab.

This is working in all modern browsers, but it's not working in IE 9. Upon investigation, for some reasons my form is being submitted as a GET (with no body) instead of a POST. Here's my code:

HTML :

  <form id="pdfDownloadForm" style="display:none" method="POST" target="_blank">
  </form>

Javascript :

    var form = document.getElementById("pdfDownloadForm");
    form.setAttribute("action", apiUrl + "download/pdf");
    form.setAttribute("method", "POST");
    form.setAttribute("target", "_blank");

    var input = document.createElement("input");
    input.setAttribute("type", "hidden");
    input.setAttribute("name", "html");
    input.setAttribute("value", getHtmlToConvertToPdf());
    form.appendChild(input);

    form.submit();

Since I'm using jquery, I also tried $(form).trigger('submit') , just to see if it made a difference (it didn't).

Any idea why IE9 would decide to turn this into a GET? Is this an old cross-domain "safety" feature that I'm going to have to work around or is there just something I'm missing that will make IE9 behave the way I want?

Answer 1

我认为这是由于Win 7中的IE安全性造成的，请尝试依次单击工具> Internet选项>安全性> Internet /本地>取消选中“启用保护模式”。