Resetting the size of iframe
You should have set up
index.php as explained in the beginning of the chapter.
How to do it...
The following will help reset the size of iframe:
index.phpand add the following highlighted code to the div
<div id="fb-root"> <!-- Your application content here --> Width(in pixels): <input type="text" id="width" value="640" /> Height(in pixels): <input type="text" id="height" ...