Can't detect "android browser" (non-chrome)

[sctv-hamanaka]

User Agent String:

Mozilla/5.0 (Linux; U; Android 4.2.2; ja-jp; SBM302SH Build/S0020) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30

Result:

{
"name": "Safari",
"vendor": "Apple",
"version": "4.0",
"category": "smartphone",
"os": "Android",
"os_version": "4.2.2"
}

The browser name must be like "Android Browser" rather than "Safari".

[tagomoris]

The old "Android Browser" looks almost outdated, and it requires ugly hack to detect it... +"Linux; U;", +"Android" +"Safari" -"Chrome"? Oops.
I want to let it be not supported.

[sctv-hamanaka]

FYI, I looked into recent statistics of our service and about 1.5% of our traffic was using that kind of browsers (name: Safari and os: Android).