javascript - How to decrease the zoom level of google-map loaded in iframe -


i loading map iframe. in iframe code corresponding map present. iframe loaded dynamically in zoom effect not present. want control zoom effect of map in case. know if map directly loaded can control "z" factor in link. if in iframe map code present how control on zoom factor of map.

<iframe src="<?php echo $file_name; ?>" width="100%" height="700px;" frameborder="0"></iframe>  

this code of line , $file_name html file load dynamically.

map.setzoom(zoom:number)

check link gmap options


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