如何解决访问控制允许来源问题?

how to solve Access-Control-Allow-Origin issue?

flv 视频通常会上传到我们的 Google 驱动器并创建到 iframe

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<iframe height="272" style="margin-top:-270px; position:absolute" src="https://drive.google.com/file/d/0BwgCehvr2FnlU3cwTTVzUXN5SXM/preview" width="440"></iframe>

其中的一些浏览器显示为 "Whoops! There was a problem playing this video. Download" 但是如果我们单击右上角的 'pop out' 按钮,视频将在单独的选项卡上打开并播放。

XMLHttpRequest cannot load https://docs.google.com/get_video_info?docid=0BwFh_4qf05UOYnkxLW9Mb3dJRFU&authuser=0. Redirect from 'https://docs.google.com/get_video_info?docid=0BwFh_4qf05UOYnkxLW9Mb3dJRFU&authuser=0' to 'https://accounts.google.com/ServiceLogin?service=writely&passive=1209600&co…tps://drive.google.com/file/d/0BwFh_4qf05UOYnkxL&ltmpl=homepage&authuser=0' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://drive.google.com' is therefore not allowed access.

如何解决这个问题?

目前 Google 驱动器似乎有问题:

https://productforums.google.com/forum/#!topic/drive/uACJyxwGbU0