facebook opengraph - og:url tag in the header is not the same URL as rel='canonical' link in the html -
this page: https://developers.facebook.com/tools/debug/og/object?q=http%3a%2f%2fmacondo.tw%2f%23%21%2fbook%2f50fa1589425b0dc41a000002.
i got warning "og:url tag in header not same url rel='canonical' link in html". however, "see our scraper sees url" showed same.
url facebook-opengraph web-crawler canonical-link
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