cordova plugin add cordova-ios-application-queries-schemes
or
cordova plugin add https://github.com/chancezeus/cordova-ios-application-queries-schemes.git
There are issues with the Cordova InAppBrowser plugin when opening facebook url's in the system browser (http[s]://[www.]facebook.com), these errors seem to be related to iOS first resolving the deep link and then checking against the whitelist (and thus throwing an error on canOpenUrl), even when you try to open the website instead of the app.
It will add the following part to the *-Info.plist file during build process:
<key>LSApplicationQueriesSchemes</key>
<array>
<string>fb</string>
<string>gplus</string>
<string>instagram</string>
<string>kindle</string>
<string>linkedin</string>
<string>pinterest</string>
<string>tumblr</string>
<string>twitter</string>
<string>whatsapp</string>
<string>yelp</string>
<string>youtube</string>
</array>