I want to inform the user that his presentation in HTML form from a PDF file was successful (or not). Now that I used the browser plugin with an adobe reader, I could get the HTML response displayed in the browser. In the case of using a standalone reader to submit my form, I received the message "Unable to process contents of type text / html; charset = uft-8".
My question is: what type / format should I use for my answer, which can be handled by both a standalone reader and a browser plugin.
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