Script Include Sans “HTTP”
So according to the Facebook tracking guide the URL recommended for including the tracking script is: //ah8.facebook.com/js/conversions/tracking.js
This is potentially a very convenient way to include a script regardless of SSL (http vs https), which will cause an alert or warning on computers with common settings. Unfortunately, this method does not work in Chrome. IE6 and FF3 will redirect to the appropriate full path with http(s). Chrome will assume the link is a relative local file, adding the prefix “file://”.
I assumed this was a typo, but the implementation guide is very deliberate in the “http” omission. I was surprised to find this works in some browsers and I wish it was a great revelation, however it is entirely impractical.
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