已发布表单上的就绪事件
我在 iframe 中有一个表单，当发布此表单时，将向用户返回一个文件（基于表单信息）。使用 content-disposition:attachment 返回此文件，以便仅显示文件保存对话框。一旦文件返回给用户，我想用 javascript 做一些事情。我尝试附加 $(iframe).ready();表单发布后到 iframe，但它会立即消失。
值得注意的是： $(iframe).load();也不起作用，它永远不会被触发。 从技术上讲，表单发布是 iframe 的第二次加载（第一次加载在 iframe 中显示表单）。
有什么想法吗？
I have a form in an iframe, when this form is posted a file is returned to the user (based on the form information). This file is returned using content-disposition:attachment so that only a file save dialog shows up. I want to do something in javascript once the file has been returned to the user. I tried attaching a $(iframe).ready(); to the iframe after the form is posted, but it goes off instantaneously.
Worth noting:
$(iframe).load(); does not work either, it is never triggered.
The form post is technically the second load of the iframe (the first load displays the form in the iframe).
Any ideas?
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唯一想到的是不要立即将文件发送回用户，而是输出一个 HTML 框架，1. 执行 Javascript，2. 完成后，重定向到下载文件（可能带有附加的 <<）。 meta> 重定向以确保其正常运行）。除此之外，我认为您没有太多机会在交付下载文件的同时执行 Javascript。
Only thing that comes to mind is to not immediately send the file back to the user, but to output a HTML skeleton that 1. Executes the Javascript and 2. when that is done, redirects to the download file (maybe with an additional <meta> redirect to make sure it works out). Other than that, I don't think you will have much chance of executing Javascript together with delivering a downlad file.
您可以尝试在表单提交后在 iframe 回调中添加一些脚本，该脚本将在父窗口中运行函数？
父窗口
回调iFrame
You could try adding some script in the iframe callback after form submit that will run a function in the parent window?
Parent Window
Callback iFrame