I can’t view your HTML file, but I think you are facing the same problem as me.
It looks like Facebook has an opinion on how to handle applications, as shown here: iOS Application Links
They basically added this Mobile Only check, which seems to be looking for "al: web: should_fallback" set to false. If so, it will immediately open your application or go to the application store if it is not installed on the device.
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<meta property="al:web:should_fallback" content="false" />