To sum up : - len : it's now the max number of characters for the value, preventing garbaged results. - a new option "prefix" is added, this allows to use dynamic cookie names (e.g. ASPSESSIONIDXXX). Previously in the thread, I wanted to use the value found with "capture cookie" but when i started to update the documentation, I found this solution quite weird. I've made a small rework to not depend on "capture cookie". - There's the posssiblity to define the URL parser mode (path parameters or query string).