问题描述
我最近开始委托CDN托管的jquery，忘记了我的ajax调用受CORS影响 - 哎呀。令人惊讶的是，我们还没有看到浏览器对此大做文章！具体来说，据我们所知，只有一个特定的浏览器会进行预检OPTIONS（代理是Mozilla / 5.0（Windows NT 6.3; WOW64; Trident / 7.0; rv：11.0）。大多数浏览器都在那里，包括Chrome ，没有预检，FF或Safari非常高兴 - 我们没有在开发/测试中发现问题的原因之一是我们的OPTIONS请求处理缺乏。
I've recently started delegating to a CDN-hosted jquery, forgetting about my ajax calls being impacted by CORS -- oops. Surprisingly, we haven't seen browsers making much fuss about it! Specifically, as far as we can tell only one particular browser does a preflight OPTIONS (the agent is "Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0"). Vast majority of browsers out there, including Chrome, FF or Safari are perfectly happy without the preflight -- one of the reasons why we didn't catch the problem in development/testing, that our OPTIONS request handling was lacking.
请确认这种情况是否确实构成了CORS：
Please confirm if this scenario does in fact constitute CORS:
- 文件：来自Host-A的app.js
- 文件：来自CDN的jquery.js
app.js对其原产地进行ajax调用（Host- A）使用来自CDN的jquery。IE11是唯一通过发布预检来做到这一点吗？
app.js makes ajax-calls to its place of origin (Host-A) using jquery from CDN. Is IE11 the only one doing it right by issuing the preflight?
谢谢！
推荐答案
所有ajax调用都有源Host-A。它们具有原始html文档域的来源。
All ajax-calls have the origin Host-A. They have the origin of the domain of the original html document.
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