I tried to get data from that site. Actually it gives data based on pixel position of habitats and roads for a specific block of a district. That pixel position changes when window size is changed. For this reason if we resize the window that page reloads. One way I tried is looping thorugh all pixels in the present window. But as my resource is limited I can't run it for whole page.
Here it is checking for (1000,500) pixel when the window size is 1366x608.
I have written a code to check for data in (1,1) , (2,2) , .... (600,600) for a specific block. I got some data also saved in two csv files roads and habitat.
Anybody interested can extend and modify this code.