var path1 = 'catalog/view/theme/default/image/flags/usa.png';
var path2 = '../catalog/view/theme/default/image/flags/usa.png';
var path3 = '/catalog/view/theme/default/image/flags/usa.png';
var path4 = '__catalog/view/theme/default/image/flags/usa.png';
var path5 = '@catalog/view/theme/default/image/flags/usa.png';
var path6 = '%catalog/view/theme/default/image/flags/usa.png';
var path7 = '?catalog/view/theme/default/image/flags/usa.png';
URL文字列の先頭に確実に / を付けるための正規表現は何でしょうか 結果は /catalog/view/theme/default/image/flags/usa.png のようになります