Some of the city names returned by the Geonames API are not capitalized. This should be checked for on the server side.

Some modern browsers still don't support the date input element. Therefore the date functionality built around them won't work at all in these browsers.

For some cities with a short name, e.g. Van, the data for a different city with a longer name, e.g. Vanadzor, might be returned when the city name is entered and submitted directly instead of picking a result from the dropdown list.

The computed time to the trip shown in the UI is one day less than it should be.

When searching for a city in Namibia, the server returns undefined instead of the country name.

The stylesheets included in the main.js won't show on IE11

The README file should include more information about what the app does and how to use it.

Place names starting with non-ASCII characters will show a capital letter in the second or third position. E.g. ŁóDź instead of the correct Łódź or İZmir instead of İzmir.

The Weatherbit API has incomplete data for their mapping from state codes to state names. This results in unrecognizable codes being sent to the user, instead of the correct name. For instance, a search for 'Athens, Greece' will return an alphanumeric value instead of the correct answer 'Attica'.

When a date input element is updated with a value lower than 10 the missing leading zeros cause the update to fail.

When a user enters only a city name and submits the form without choosing a city from the dropdown list (which would select a province/state and country) no picture of the city appears and an error appears in the console.

If a request to the Pixabay API times out no picture and no error message is shown in the UI.