Uploading files to forms doesn't work

[eliocamp]

I'm trying to fill out a form that includes file upload. I used to be able to do something like this

form <- rvest::html_form_set(form, list(file = httr::upload_file(file))
session <- rvest::session_submit(session, form)

(with the equivalent deprecated functions)

However, now the server is returning an error saying that the file was not uploaded. Eventually I worked around the issue by manually setting the file after submission_build(). This works:

submit_form <- rvest:::submission_build(submit_form, NULL)

submit_form$values$file <- httr::upload_file(file)

resp <- suppressMessages(rvest:::submission_submit(submit_form, session$config, handle = session$handle))
session <- rvest:::session_set_response(session, resp)

I'd love to give a reprex but I don't know of any public service that could be used for testing this out.

[deanm0000]

I was having the same issue and your workaround worked for me.