Workaround for WebKit bug 73152

css-prop-serializer.js

// Workaround for WebKit bug 73152 (https://bugs.webkit.org/show_bug.cgi?id=73152)

var serialize_css_prop = function(style, prop) {
	"use strict";

	var
	  css = []
	, vals = style.getPropertyCSSValue(prop)
		, val
		, val_css
			, i
			, len
	;

	if (!vals) {
		return;
	}

	if (vals.cssValueType !== vals.CSS_VALUE_LIST) {
		vals = [vals];
	}

	i = 0;
	len = vals.length;

	for (; i < len; i++) {
		val = vals[i];
		val_css = val.cssText;

		if (val.primitiveType === val.CSS_STRING && !/^\s*["']/.test(val_css)) {
			// Since the bug doesn't apply to strings with quotes, I can
			// safely surround the string with single quotes without escaping.
			val_css = "'" + val_css + "'";
		}

		css.push(val_css);
	}

	return prop + ":" + css.join(" ") + ";";
};