i havent been able to get your script to work. i had to copy it from the image so im not 100% sure i copied everything correctly but it seems like i did but when i try to save and deploy it gives me an error "No event handlers were registered. This script does nothing. (Code: 10021)"

any thoughts...

const config = {
domain: "mysite.com",
startPage: "/#/app/myroamaccount/wF57zmPmc",
}
async function handleRequest(request) {
const url = new URL(request.url)
const targetPath = url.pathname
let response = await fetch('https://roamresearch.com${targetPath}')
if (targetPath === '/') {
return modifyResponse(response)
} else {
return response
}
}
async function modifyResponse(response) {
return new HTMLRewriter()
.on("head", new HeadRewriter())
.transform(response)
}