I currently have a Suitelet that returns some stock data for items that's failing. When navigating to the script directly using the request URL, I get an error that says

Invalid page parameter. Unable to view page.

Anybody know what that's about?

of course

Actually, I think our other dev applied a hotfix. He's off the grid, but was able to take care of it. Haven't had a chance to talk to him yet, but still curious what might have happened.

URLs of Suitelets available without login changed, if hardcoded URLs are used it would fail.

@alien4u Yep, that's definitely the issue. Lots more Suitelets failing this morning. What's the alternative to hardcoding the URLs to the Suitelets, though, especially in something like an XMLHttpRequest?