Fixing note about closing tabs/windows.

Eric Koleda · web-flow · commit 9b428aa6a93d · 2016-09-19T10:10:53.000-04:00
diff --git a/README.md b/README.md
@@ -138,8 +138,10 @@ to the user.
       }
     }
 
-**Note:** In an Apps Script UI it's not possible to automatically close a window
-or tab, so you'll need to direct the user to close it themselves.
+If the authorization URL was opened by the Apps Script UI (via a link, button, etc)
+it's  possible to automatically close the window/tab using `window.top.close()`.
+You can see an example of this in the sample add-on's 
+[Callback.html](samples/Add-on/Callback.html#L47).
 
 ### 4. Get the access token
 

Original file line number	Diff line number	Diff line change
`@@ -138,8 +138,10 @@ to the user.`
`138`	`138`	`}`
`139`	`139`	`}`
`140`	`140`
`141`		`-Note: In an Apps Script UI it's not possible to automatically close a window`
`142`		`-or tab, so you'll need to direct the user to close it themselves.`
	`141`	`+If the authorization URL was opened by the Apps Script UI (via a link, button, etc)`
	`142`	+it's possible to automatically close the window/tab using `window.top.close()`.
	`143`	`+You can see an example of this in the sample add-on's`
	`144`	`+[Callback.html](samples/Add-on/Callback.html#L47).`
`143`	`145`
`144`	`146`	`### 4. Get the access token`
`145`	`147`