* @param page the XDIME page
*/
private RenderedPageCacheScope getPageCacheScope(String page) {
RenderedPageCacheScope scope = null;
RE regExpression = new RE(findCanvas);
if (regExpression.match(page)) {
String canvasAttributes = regExpression.getParen(2);
regExpression.setProgram(findCacheScope);
if (regExpression.match(canvasAttributes)) {
scope = RenderedPageCacheScope.get(regExpression.getParen(1));
}