Which pattern to use for case when necessary to recovery state of application?

I have some observer methods that return data from server. This result is applied to filters (HTML form with data inputs). These filters are related each others. It means when I choose one filter it loads another.

Brief illustration is:

Load data from server -> 
Assign response to variable and assign to filter -> 
Choose value from filter -> 
Fill others filters -> 
Load content on the page based selected filter

User can leave this page and return after.

How to provide user statement of page with selected filters and content avoiding repedly server request?