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javascript跨网域问题

[英]javascript cross-domain issue

原文 2010-07-06 10:11:23 0 3 javascript/ cross-domain

I am building a small widget that I am giving to users to embed in their websites and blogs. 我正在构建一个小部件，将其提供给用户以嵌入他们的网站和博客中。 Now the widget loads a javascript file in the page where it is embedded from my server, which in turn puts an xmlhttp request back to my server to obtain data. 现在，该小部件将javascript文件加载到从我的服务器嵌入的页面中，这又将xmlhttp请求放回我的服务器以获取数据。 Due to security reasons this request is being blocked when placed on other server (except my server). 出于安全原因，将此请求放置在其他服务器（我的服务器除外）上时被阻止。 I need a solution to this. 我需要一个解决方案。

I have searched a lot for a solution. 我已经搜索了很多解决方案。

I am sure I cannot use the proxy solution here as the domains on which the script will be running is not controlled by me. 我敢肯定我不能在这里使用代理解决方案，因为运行脚本的域不受我控制。

Also, I cannot use iframe due to Search engines. 另外，由于搜索引擎的原因，我无法使用iframe。

What could be a possible solution? 有什么可能的解决方案？

Thanks, 谢谢，

happyhardik 快乐哈迪克

3 个解决方案

To my knowledge, using JSONP is the only way to do this. 据我所知，使用JSONP是实现此目的的唯一方法。

Also, I cannot use iframe due to Search engines. 另外，由于搜索引擎的原因，我无法使用iframe。

This I don't understand, though: If your widget is JavaScript driven, it won't turn up in any search engines anyway, will it? 不过我不明白这一点：如果您的小部件是JavaScript驱动的，无论如何它都不会在任何搜索引擎中打开，对吗？

This is pretty much a duplicate of any number of related queries. 这几乎是任何数量的相关查询的重复。 eg 例如

Cross Domain Scripting Issues & JSONP 跨域脚本问题和JSONP

Basically you want to use JSONP. 基本上，您想使用JSONP。

EDIT: I see Pekka has already said this. 编辑：我看到Pekka已经说过了。

Browsers do not support cross domain ajax requests due same origin policy . 浏览器不支持跨域ajax请求，原因是同源策略相同。 You can check out this javascript library: ACD . 您可以签出以下JavaScript库： ACD 。