I’m using the API explorer on the site but for some reason, whenever I click ‘Try it out’ it doesn’t work for me - I keep getting 401, ‘The calling application is unauthenticated’. I have selected my application and it’s enabled and the API key is appearing. When I go to other APIs it works, but only Trip Planner API is giving me troubles.
EDIT: I also have another question – I’m planning to create a web app (mainly frontend) using the APIs available, is this possible without a server? I say this because I haven’t been able to make a simple API request work with just XMLHttpRequest() because the API doesn’t accept ‘Allow-Control-Access-Origin’.
Any help would be greatly appreciated.