I have a script that draws a hexmap (hexmap.php) that I include in another script through the <IMG> HTML tag. The image does not always seem to update even though the hexmap script has definately done some work. Having the browser reload guarantees the correct image, but is there some way to ensure that the image will be current without requiring the user to reload? I have tried using the header() function and sending no-cache and no-store header data, but to no avail. Thanks in advance.
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