[OpenLayers-Dev] WFS chacheing / BACK button

[Shadin]

Hello developers 

I'm using WFS protocol on Vector layer / GeoServer / PostGIS 

Currently the map is refreshing and calling new requests whenever i do
anything like searching or drawing and when i move back to a part of the map
which previously had features already downloaded, it refreshes and call new
request again. i need to  reuse previous data for previous requests. 

I've read that the OpenLayers does not have this functionality. but this was
a long time ago. 
is there a way to cache wfs returns by check the boolean in top of the code
or anything like that ? 

also that will help me implement my BACK button so that i can store previous
requests in a stack and pull requests when the user clicks the back button 


would appreciate any help.

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