cors-proxy

The version number for the default User-Agent header is hardcoded, and is currently out of date. It may be worth auto-updating this value during the build to match the value in the package.json file.

https://github.com/byu-imaal/dohjs/blob/ecf8077e628db214c183ebbedb10f17e83cde045/lib/index.js#L165

A landing page is required, as of now the server only works as an API.
The root path, / requests should route to the landing page and rest all request should be routed to use the current handler of the API.

Currently, https://non-cors.herokuapp.com/ returns StatusPreconditionFailed error

{
  "error": {
    "Code": 412,
    "Message": "URL not provided",
    "Detail": {