Facebook loads page tab secure url as http -

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i'm doing basic facebook app. have it's "secure page tab url" set ssl certificated url (https://example.com/). said url nothing fancy, plain old html. add fb app fb page tab. sounds dead simple, right?

no. instead of loading contents of https://example.com/, i'm getting 302 nginx. according our server guy, has setup if accesses http://example.com/, nginx 302 them https://example.com/. leads conclude facebook loading http://example.com instead, makes no sense @ all.

i'm pretty sure facebook app setup correct (tested site, iframe loaded no problems), problem must on our server side. should looking at? pointers appreciated.


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