HTML Alternative method for file uplloads

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May 24, 2017, at 10:13 AM

I am using an HTML form for collecting information from my customers.

They can anytime open the form and update their information, a json of the values is included in page and is populated in the form thorough jquery.

Now i have added a input type=file for them to upload a file.

The problem is that if they are submitting the form again, if they changed for example a address then the previous file upload control is empty, and jquery cannot set the value of file upload control because of the security standard, so how could i know if they want to delete or keep the file?

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