#Creates a new URL by appending or replacing the given query key and value
#chrome://resources/js/util.js
/**
* Creates a new URL by appending or replacing the given query key and value.
* Not supporting URL with username and password.
* @param {Location} location The original URL.
* @param {string} key The query parameter name.
* @param {string} value The query parameter value.
* @return {string} The constructed new URL.
*/
function setQueryParam(location, key, value) {
var query = parseQueryParams(location);
query[encodeURIComponent(key)] = encodeURIComponent(value);
var newQuery = '';
for (var q in query) {
newQuery += (newQuery ? '&' : '?') + q + '=' + query[q];
}
return location.origin + location.pathname + newQuery + location.hash;
}