Avoid CORS fetch in COPY GAME! — open URL to trigger browser download

[ReedonMenu]

Motivation

• The previous fetch-based download path produced CORS failures (e.g. Failed to fetch) for many Roblox URLs, preventing the expected download behavior.
• Provide a safer, more reliable flow that relies on the browser to open or download direct file links instead of trying to fetch blobs across origins.
• Keep the local-path handling and the PowerShell script generation for local backups intact and explicit.

Description

• Replaced the fetch(...).blob() download path in index.html with an anchor-based flow that asks permission and opens the provided URL in a new tab, allowing the browser to perform native downloads for direct file links.
• Adjusted the confirmation prompt text to Allow this website to open/download this URL? and improved status messages to reflect the new behavior.
• Preserved filename extraction from the URL and set the anchor's download attribute when a filename is present to hint the browser to download.
• Left the PowerShell .ps1 generation and local-path guidance unchanged so local copy/backups still use the existing COPY AS POWERSHELL flow.

Testing

• Ran unit tests with python3 -m unittest -v and both tests in test_roblox_game_copier.py passed (OK).
• Executed an automated Playwright script that served index.html, filled a Roblox URL, accepted the dialog, clicked COPY GAME!, and captured a screenshot confirming the UI no longer shows a CORS error.
• Verified the page served locally with python3 -m http.server and the updated click/open behavior works in the browser automation run.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
game-copier	Ready	Preview, Comment	Feb 20, 2026 1:24pm