Android android browser render ugly button before playing HTML5 video

I wrote a Javascript / HTML5 page that downloads and caches some short videos and starts playing them in a loop. However, when I open this page in Android web browser (SKD ver 21), before starting to play any video, it displays that ugly big play button for half a second and then starts playing the video. How can I practically get rid of this?

I have already tried this but no luck!

Android html5 problem

Hide iPhone HTML5 Video Play Button

Here is more details about the sdk version I am using

compileSdkVersion 21
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId "com.example.aa.webview2"
        minSdkVersion 17
        targetSdkVersion 18