3.B.6. Native Browser Clicks In order to do tracking in the OS’s native browser, partners may choose to use the native browser click functionality supported by the MoPub SDK.
You can target this functionality via the banner.ext.nativebrowserclick field on the request. If set to 1 it is supported by the requesting SDK.
In the creative returned in the adm field, this behavior can be triggered by setting the click through URL in the following format using a custom URI pattern (this custom URI will open the URL in the native OS browser) :
IMPORTANT: Ensure that ‘http://’ or ‘https://’ is included in the intended landing page URL.
This is from: https://dev.twitter.com/mopub-demand/overview/openrtb