Hi Watabou !
Thanks for your replies.
I am not sure to very well use MCFG URL and its parameters. In my browser, I call https://watabou.itch.io/medieval-fantasy-city-generator, it displays a generated city. If I add "?export=png" or "?export=json", I works, but I get a new city each time.
Same thing if I add "&wall=0" or "wall=1", I got a city with or without walls around the city, but city is regenerated. How can I stay on same city and test some variations by url ?
BTW, is there a list of URL options (wall,castle,...) in MFCG ?
I try the same thing on VG, but except export, which does not have any effect, I am able to get the same village (I suppose as long as I keep the same value in "seed" ?).
But the last point ("error"), I am not able to reproduce it today. My memory was I got a "500 internal error" on MFCG, when adding a "?export=XXX".
(All my tests have been done with Chrome, and most of the time confirm with Firefox).