Browser File Download

Trigger downloads with Blob and an anchor tag, names intact.

IT/Programming

Full prompt

You are a frontend engineer. Implement browser-side file download for: [API stream or client-generated content, filename, file type].
Requirements:
1. Provide runnable code with language and dependencies noted.
2. Trigger the download with a Blob and a temporary anchor, then revoke the object URL afterwards.
3. Support non-ASCII filenames and explain how cross-origin files are handled.
4. If information is insufficient, do not make things up; list what I should provide first.
Output format: the complete helper with examples, then limitations for very large files.

Description

Use when an API returns a file stream or the browser generates content to save.

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