Problem and fix

On <select> elements, the Android stock browser will not display the side controls if there is a border-radius and/or border applied. Use the snippet of code below to remove the offending CSS and render the <select> as an unstyled element on the Android stock broswer. The useragent sniffing avoids interfernece with Chrome, Safari, and Mozilla browsers.

<script>
var nua = navigator.userAgent;
var is_android = ((nua.indexOf('Mozilla/5.0') > -1 && nua.indexOf('Android ') > -1 && nua.indexOf('AppleWebKit') > -1) && !(nua.indexOf('Chrome') > -1));
if(is_android) {
		$('select.form-control').removeClass('form-control').css('width', '100%');

}
</script>

See it in action

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Before

After