I have a captive portal which, as of Android 5.0+ Lollipop, launches in Android's Captive Portal Browser rather than the device's default browser.
I need to somehow detect if they are in the captive portal browser (as opposed to a regular web browser) and if so, show different content.
Is it possible, by examining the User Agent, or through Javascript, to detect if they are within a Captive Portal Browser window? I have looked at the user agents on my Android 5.1 device, but I can't see anything to differentiate them:
CAPTIVE PORTAL BROWSER:
Mozilla/5.0 (Linux; Android 5.1; Elite 5 Build/LMY47D) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36
REGULAR GOOGLE CHROME:
Mozilla/5.0 (Linux; Android 5.1; Elite 5 Build/LMY47D) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.94 Mobile Safari/537.36
There is a slight difference in the version numbers but this seems inconsistent across Android/Chrome versions and not a reliable way to determine the browser type.
Are there other ways to detect it? Thanks in advance.