Instead of an AJAX call, use a direct link ( ) or a programmatic form submission. If you must use AJAX, you have to manually trigger the download using a blob: javascript
Standard filename only supports US-ASCII. For special characters (accents, non-English scripts), you must use the filename* parameter with UTF-8 encoding. 3. Browser Overrides and Settings content disposition not triggering download
Ensure the value is set to attachment and not just a filename. Incorrect: Content-Disposition: filename="report.pdf" Instead of an AJAX call, use a direct
If your header is not triggering a file download, it’s typically due to how the request is initiated or how the header itself is formatted. 1. AJAX and Fetch Requests Instead of an AJAX call
Browsers are strict about the formatting of the Content-Disposition header.
If your filename contains spaces or commas, it must be enclosed in double quotes.
Sometimes the browser intentionally ignores the "attachment" directive based on user preferences or built-in viewers.