Sequence/script not loading

[shen-y-eric]

Hi, I'm just a beginner following the tutorial for embedding JBrowse 2 into my website. I copy and pasted the code provided in the tutorial, but as you can see in the screenshot below, the sequence selection just loads forever. I suspect it has something with the script not loading properly, but I haven't been able to figure it out. I am currently running this with just npx serve

[garrettjstevens]

I can't say for sure, since the code from the tutorial is working for me, but I would first double-check that the aliases file is correctly formatted and the name of the file is exactly the same as it is specified in assembly.js.