I'm developing a REST API app that generates some PDFs for my users, but there are only available for a certain period of time. To download them I'm using the a HTML tag:
<a href="/api/items/1/generate?type=register"
download="Important Letter.pdf">
<svg>...</svg>
</a>
This works fine in the normal flow of the use case, but if a user request a PDF outside of the download period, the server responds to the request with a 422 (Unprocessable Entity) HTML code, and place a json on the body of the request:
HTTP/1.1 422 Unprocessable Entity
Content-Type: application/json;charset=utf-8
{"error" : "Registration period expired",
"type" : "expired",
"data" : {"id" : 1}}
Safari does not interpret this error and it generates the Important Letter.pdf file and writes the json content on it.
Is there a wat to avoid this behavior and display an error message to the user? I was wondering if my server should send some specific error code.
