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I'm looking for a way to add a string as a file inside a html form using JavaScript.

Now I know about the security issues the browsers have when it comes to files, but I'm not looking for adding a file path (as happens when you click the browse of a file input)!!
I want to add a string as a file (The server I'm hitting expects the post to include a file and not a simple form entry).

I know how to perform the action using the FormData object, but I don't want to generate a xhr(ajax) post. I need the post to be a simple form post since the server responds with a redirection.

Does anyone have an idea about this?

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  • PHP would be able to create a fake file for you and do the post call through CURL. Commented Jan 30, 2017 at 13:26
  • What file type does it expect? Commented Jan 30, 2017 at 13:27
  • I need to do this using html + javascript. The file type is a simple text file. The content is a base64 string. Commented Jan 30, 2017 at 13:27
  • So did you search and file questions like this: stackoverflow.com/questions/31048215/… Does it help? Commented Jan 30, 2017 at 13:32
  • I did search SO and didn't find a suitable result. Commented Jan 30, 2017 at 13:35
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