title: Write to a file at a specific location on client side
body: <p>I'm creating a bit array from info gathered on my form, to be able to save and append it to a specific file on client side. I am able to prompt the user for them to save it, but I don't want to give them a choice of where to save the file. Is there anyway to force the save location, so all the user does it click a button and the file is appended to.</p>