覆盖Webbrowser控件上的window.location [英] Overriding window.location on Webbrowser Control
问题描述
这似乎是一个奇怪的问题，但是有没有一种方法可以覆盖window.location而不使浏览器控件导航到它呢?我遇到的问题是我在控件中注入了html代码，并且window.location是about:blank-在某些javascript代码上引起错误.试图让他们认为自己不在URL中:about
This might seem a weird question, but is there a way to override the window.location without making the browser control navigate to it? The problem I am having is that i am injecting html code in the control, and the window.location is about:blank - causing errors on some javascript code. Trying to make them think they are in a URL other than about:blank
推荐答案
在document.documentMode >= 9(IE9 +)上，我已经成功使用 Object.defineProperty().
I've had success with Object.defineProperty() when document.documentMode >= 9 (IE9+).
要以IE9 +模式获得WebBrowser控件，我首先加载以下URL:
To get the WebBrowser control in IE9+ mode, I first load the following URL:
about:<!doctype html><meta http-equiv="X-UA-Compatible" content="IE=edge">
这将在最新文档模式下提供一个大部分为空的文档.
This gives a mostly empty document in the latest document mode.
然后重新定义window.location，我通过eval()或document.write()执行一些脚本:
Then to redefine window.location, I execute some script via eval() or document.write():
Object.defineProperty(window, 'location', {value: {href: 'fubar'}});
完整的序列是这样的:
- 加载控件.
- 等待
WebBrowser.ReadyState == 4或DocumentComplete事件. - 致电
document.open()(重要). - 评估或编写重新定义位置的脚本.
- 编写HTML内容.
- 调用
document.close()(确保调用onload).
- Load the control.
- Wait for
WebBrowser.ReadyState == 4or theDocumentCompleteevent. - Call
document.open()(important). - Eval or write the script redefining location.
- Write the HTML content.
- Call
document.close()(ensures onload gets called).
注意:我使用ActiveX WebBrowser 控件，而不是.NET组件，它是该控件的包装器.在.NET中，它可能会工作相同.
Note: I use the ActiveX WebBrowser control, and not the .NET component which is a wrapper around that control. It will probably work the same in .NET.
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