iframe height but not width

Question

In my facebook page I added my iframe app with setting : Canvas Width Fixed (760px) and Height Fixed 800px;

I call FB.Canvas.setAutoGrow(90); and it work fine for height but not for width. is it normal? I want to my iframe width take about 740px. https://www.facebook.com/pages/Camping-Demonstration/167138953341219?sk=app_191265277583854

I tried with setSize and it work just for the height too. what did I miss?

Answer 1

That's a page tab app and the settings you just mentioned are for canvas apps - the settings for page tabs are on the main page of app settings, in the same section you enter the Page Tab URL and Secure Page Tab URL values