Opera User-JS：如何获取原始服务器响应？
我正在为 Opera 编写一些用户 JS。它对没有扩展名的请求做出反应，例如 /stuff/code/MyFile，或者具有与 JavaScript 无关的扩展名，例如 /stuff/code/load.do.响应的内容类型设置为 text/html，即使它返回纯 JavaScript 源 (text/javascript)。由于我无权访问服务器代码，我只能忍受这一点。
现在的问题是我想用行号等格式化源代码并在 Opera 中显示它。因此，我编写了一些用户 JS 来对 AfterEvent.DOMContentLoaded 做出反应（也尝试了 AfterEvent.load，同样的事情）。它读取e.event.target.body.innerHTML来访问正文，即JavaScript代码。
如果源代码不包含 HTML 标签或比较运算符（<、>），那么仅此一项就可以很好地工作。既然如此，我永远不会得到我想要的输出。 Opera 似乎有一些内部逻辑可以将 text/html 响应转换为其自己的表示格式。这包括例如删除 HTML 标签后的 CRLF 或两个“匹配”之间的代码。和> （比较运算符！）被压缩成一行，在每个单词后面应用 ="" 。
这就是问题所在。
如果我在没有用户 JS 的情况下请求相同的 URL，然后查看“页面”的源代码，我会看到与服务器发送的内容相同的干净 JavaScript 代码。这就是我想要访问的内容。
如果我使用 innerText 而不是 innerHTML，Opera 也会删除 HTML 标签，使文件与原始文件不同。
我还尝试查看 outerHTML、outerText 和 textContent，但它们都有相同的问题。
我知道 Opera 在这里并没有做错什么。服务器说它是一个 text/html，而 Opera 只是执行它通常对 text/html 类型的响应所做的事情。
因此，我的问题是：有没有办法通过用户 JS 获得未受影响的响应？
I'm writing some user-JS for Opera. It reacts on a request that doesn't have an extension, e.g. /stuff/code/MyFile, or has one not related to JavaScript, e.g. /stuff/code/load.do. The content-type of the response is set to text/html, even though it returns pure JavaScript source (text/javascript). As I don't have access to the server code I simply have to live with this.
The problem now is that I want to format the source with line numbers and such and display it inside Opera. Therefore, I wrote some user-JS to react on AfterEvent.DOMContentLoaded (also tried AfterEvent.load, same thing). It reads e.event.target.body.innerHTML to gain access to the body, i.e. the JavaScript-code.
That alone would work nicely, if only the source wouldn't contain HTML-tags or comparison operators (<, >). Since it does, I never get the output I want. Opera seems to have some internal logic to convert the text/html-response into its own representation format. This includes that e.g. a CRLF after a HTML-tag is removed or code between two "matching" < and > (comparison operators!) are crunched together into one single line applying ="" after each word in there.
And that's where the problem is.
If I request the same URL without my user-JS and then look at the source of the "page" I see a clean JavaScript-code identical to what the server sent out. And this is what I want to get access to.
If I use innerText instead of innerHTML, Opera strips out the HTML-tags making the file different to the original, too.
I also tried to look at outerHTML, outerText and textContent, but they all have the same problems.
I know that Opera doesn't do anything wrong here. The server says it's a text/html and Opera simply does what it usually does with a text/html-kind of response.
Therefore, my question is: is there any way to get the untouched response with a user-JS?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
没有任何方法可以从 JS 访问预解析的标记。唯一的方法是使用 XMLHttpRequest 自己请求内容。
There isn't any way to access the pre-parsed markup from JS. The only way to do that would be to use XMLHttpRequest to request the content yourself.