In a mucow file, is there a way to set the widget wdith as browserWidth by default?

Question

I'm making my own widget for Adobe Muse CC. Most of the time, this widget should get the same width that the browser window. Can I set the width default value as 'BrowserWidth' for a widget ?

Something like defaultWidth="browserWidth"

my-widget.mucow

<?xml version="1.0" encoding="UTF-8" ?>
<HTMLWidget name="my-widget" formatNumber="6" localization="none"  creator="Johan Maïa" supportedSizePolicies="fixed,browserWidth"  defaultHeight="32" defaultWidth="browserWidth" isResizable="false">
...
<HTMLWidget/>