Facebook 用户没有头像，但默认的空白头像没有在我的网络应用程序中显示
我有一个 Facebook 应用程序，并且我在我的页面上显示了 Facebook 连接的用户。
但我看到这个特定用户的头像是空白的。 然而，Facebook 自己的“无照片”图像以及右下角的“f”标志都没有显示。
不明白为什么这么奇怪，有什么方法可以确定此类用户吗？
I have a Facebook application and I show showing Facebook Connected users on my pages.
But I see this particular user's avatar is just blank. However Facebook's own "no photo" image is not showing either as well as it's "f" logo in the bottom right.
Can't get why it's so weird and is there any way to determine such users?
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如果 Facebook 自己的头像也没有显示，那么这是 Facebook 本身的错误/问题，而不是与您的应用程序相关的问题。 我建议将此问题作为错误报告给 Facebook，然后等待他们修复。
编辑：问题似乎是用户尝试上传图像，但文件在上传过程中损坏，现在显示损坏的图像图标。 只需要求用户重新上传他的图像，很可能就可以解决问题。
If Facebook's own avatar is also not showing, its a bug/issue with facebook itself and not something related to your application. I would suggest reporting this to Facebook as a bug and then waiting for them to fix it.
Edit: The issue seems to be that the user tried to upload an image, but the file got corrupted during the upload and now its showing the broken image icon. Just ask the user to re-upload his image, most likely that would fix it.