function getURLParameters() {
			var oParams = new URLSearchParams(window.location.search);
			return Array.from(oParams.keys()).reduce(function(oResult, sKey) {
				oResult[sKey] = oParams.getAll(sKey);
				return oResult;
			}, {});
		}
Creates a simple object with all URL parameters.
@returns {Object<string,string[]>} Map of parameter value arrays keyed by parameter names