javascript - Prompt-Permission on facebook? -

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I'm having trouble understanding that FB: How to prompt-permission work. I can see a link when the user clicks on the FB: login-button or the user is already logging in via Facebook or through our website. On the other hand, without clicking on the login-button, the link or the permission dialog is not render, if the user has already logged on to our page from Facebook

This does not mean that the quick-permission Only available when the user clicks the login button ... Is there no way to do this?

Use this: 

  & lt; Fb: login-button perms = "publish_stream, email" & gt; Login and install & lt; / Fb: Login button & gt;

Source:


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