server breaks with an HTML file with no line break at the end

[gusborg88]

Here's the stack trace with my name censored:

[11ty] Cannot read properties of undefined (reading 'length') (via TypeError)
[11ty]
[11ty] Original error stack trace: TypeError: Cannot read properties of undefined (reading 'length')
[11ty]     at SendStream.hasTrailingSlash (C:\Users\me\SavedGames\FNF-Hypertext-Engine\node_modules\send\index.js:302:30)
[11ty]     at SendStream.pipe (C:\Users\me\SavedGames\FNF-Hypertext-Engine\node_modules\send\index.js:585:34)
[11ty]     at EleventyDevServer.eleventyProjectMiddleware (C:\Users\me\SavedGames\FNF-Hypertext-Engine\node_modules\@11ty\eleventy-dev-server\server.js:543:44)
[11ty]     at EleventyDevServer.eleventyDevServerMiddleware (C:\Users\me\SavedGames\FNF-Hypertext-Engine\node_modules\@11ty\eleventy-dev-server\server.js:510:5)
[11ty]     at EleventyDevServer.onRequestHandler (C:\Users\me\SavedGames\FNF-Hypertext-Engine\node_modules\@11ty\eleventy-dev-server\server.js:633:11)
[11ty]     at Server.emit (node:events:518:28)
[11ty]     at parserOnIncoming (node:_http_server:1150:12)
[11ty]     at HTTPParser.parserOnHeadersComplete (node:_http_common:117:17)

The issue was with a file without a line break at the end, I'm on windows so it has carriage returns too. Sometimes when I removed it, it stopped working, but it always worked with it in.
Here's the HTML file (i was just messing around testing things)

---
---
<audio data-music id="freaky-menu" src="assets/music/freakyMenu.mp3"></audio>
<label><input type="checkbox">jefferys endless aethos</label>