404 Page not found 
Author: christer kårdal
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My latest articles on www.e-siggen.net is showing 404 page not found when publishing on facebook. I don't know what is wrong, or if it's a website x5 problem. Here's a link to one of the pages that shows this error: http://www.e-siggen.net/hva-er-dampetunge.html
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Are you sure the page is entered correctly on facebook ? ends with html ? Did you use capitals somewhere? if so then change it.
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I fixed it, it's a facebook thing, so I had to use the facebook debugging tool , and that worked.
https://developers.facebook.com/tools/debug/og/object/