Test is not passing when it looks like it should

Tell us what’s happening:
I can’t pass the last test, " If you pass an invalid URL that doesn’t follow the valid http://www.example.com format, the JSON response will contain { error: 'invalid url' }", even though the response is clearly a JSON object that contains the exact error message required by the test. I’m not receiving any kind of errors.

Your code so far

https://repl.it/@notrabe/boilerplate-project-urlshortener#server.js

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36.

Challenge: URL Shortener Microservice

Link to the challenge:

is your project able to tell “invalid” for an url like ftp://www.google.com?