Facebook Android: "Security Error: There are problems with the security certificate for this site" -

i getting following error when trying follow link posted on facebook:

"security error: there problems security certificate site"

the site has valid ssl , link works correctly in browsers + ios not on android. can't find information issue @ all.

any or insight appreciated.

www.espressorium.com.au not provide complete certificate chain. see ssl labs report site indicates missing intermediate certs (the ones marked "extra download").

the website needs provide intermediate certificates avoid seeing error. see https://serverfault.com/questions/620544/why-does-android-chrome-say-my-sites-security-certificate-is-not-trusted steps this.

similar report ssl shopper.