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URL的Ajax GET请求失败,但是相同URL的hurl.it GET请求起作用。 是什么赋予了?

[英]Ajax GET request of URL fails, but hurl.it GET request of same URL works. What gives?

I'm trying to access the contents of a web page as part of the functionality of a javascript Chrome extension I'm creating and have encountered a bit of a puzzle. 我正在尝试访问网页的内容,这是我正在创建的javascript Chrome扩展程序功能的一部分,并且遇到了一些困惑。

When accessing the resource as part of an Ajax GET request in my extension's script, the resource does not correctly load. 在扩展脚本中作为Ajax GET请求的一部分访问资源时,资源无法正确加载。 When I attempt the same GET request through hurl.it (with follow-redirects on and no header modifications), the data loads. 当我通过hurl.it尝试相同的GET请求时( 启用了跟随重定向并且没有头修改),数据将加载。 It also works if I just enter the URL in my browser. 如果我只是在浏览器中输入URL,它也可以工作。

I can't figure out what hurl.it is doing differently in its request and how to fix my own. 我无法弄清楚hurl.it在其请求中做的不同以及如何解决自己的问题。

The URL I'm trying to query is in the form of (with 'Hello' as an example search): 我要查询的URL的形式为(以“ Hello”作为示例搜索):

http://overdrive.dclibrary.org/BANGSearch.dll?Type=FullText&PerPage=24&URL=SearchResults.htm&Sort=SortBy%3DRelevancy&FullTextField=All&FullTextCriteria=Hello&x=0&y=0%22 http://overdrive.dclibrary.org/BANGSearch.dll?Type=FullText&PerPage=24&URL=SearchResults.htm&Sort=SortBy%3DRelevancy&FullTextField=All&FullTextCriteria=Hello&x=0&y=0%22

This would appear in my script like: 这将出现在我的脚本中,如下所示:

var get_url = "http://overdrive.dclibrary.org/BANGSearch.dll?Type=FullText&PerPage=24&URL=SearchResults.htm&Sort=SortBy%3DRelevancy&FullTextField=All&FullTextCriteria=Hello&x=0&y=0"

$.get(get_url,function(data){
    console.log(data);
});

To be clear, the above code will output HTML to the console. 为了清楚起见,以上代码会将 HTML输出到控制台。 It just doesn't include any of the results from the search query. 它只是不包括搜索查询的任何结果。

Thanks in advance! 提前致谢!

Edit: My extension has been given permission to access anything in the dclibrary.org domain. 编辑:我的扩展程序已被授予访问dclibrary.org域中任何内容的权限。

There's a redirect in the response, which can break a browser. 响应中存在重定向,这可能会破坏浏览器。 HTTP/1.1 302 Moved Temporarily works in chrome though. HTTP / 1.1 302 Moved暂时在chrome中工作。 why is it returning a 302 response? 为什么返回302响应? With ASP.net/IIS sometimes unauthorized (not logged in) users are redirected with a 302 response. 使用ASP.net/IIS时,未经授权(未登录)的用户有时会被重定向为302响应。 This is bad behavior, if login is needed, it should issue a 403, but obviously this is not the intent. 这是不良行为,如果需要登录,则应发出403,但显然这不是故意的。

Use Fiddler to debug full headers (or chrome dev tools). 使用Fiddler调试完整的标头(或chrome开发工具)。

    HTTP/1.1 302 Moved Temporarily
Cache-Control: private
Content-Type: text/html; charset=utf-8
Location: http://overdrive.dclibrary.org/4F2C56FC-9659-4640-9E00-9433B3CC9A7F/10/50/en/SearchResults.htm?searchid=38432201s&sortby=Relevancy
Server: Microsoft-IIS/7.0
X-AspNetMvc-Version: 4.0
X-AspNet-Version: 4.0.30319
Set-Cookie: Session=4F2C56FC-9659-4640-9E00-9433B3CC9A7F|0|0|50|en; expires=Tue, 01-Jan-2030 00:00:00 GMT; path=/; HttpOnly
X-Powered-By: ASP.NET
Date: Fri, 06 Mar 2015 20:53:31 GMT
Content-Length: 12484
Connection: keep-alive
Keep-Alive: 60
Via: HTTP/1.1 proxy2444

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<h2>Object moved to <a href="http://overdrive.dclibrary.org/4F2C56FC-9659-4640-9E00-9433B3CC9A7F/10/50/en/SearchResults.htm?searchid=38432201s&amp;sortby=Relevancy">here</a>.</h2>
</body></html>

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