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input type="url" works like this by design: An empty string ("") indicating that the user did not enter a value or that the value was removed. A single properly-formed absolute URL. This doesn'...
Answer
#1: Initial revision
by
Alexei
·
2021-03-31T05:54:45Z (over 3 years ago)
`input type="url"` works like this [by design](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/url):
> An empty string ("") indicating that the user did not enter a value or that the value was removed.
> A single properly-formed absolute URL. This doesn't necessarily mean the URL address exists, but it is at least formatted correctly. **In simple terms, this means urlscheme://restofurl.**
While most users do not care about it, there are [lot of URI schemes](https://en.wikipedia.org/wiki/List_of_URI_schemes) out there and the scheme must be provided.
Even in the specific case of http/s, if the web application is correctly configured to automatically redirect `http` to `https` or it does not have a certificate, inferring the scheme might fail.
As a side note, I have such inputs in various applications used by non-tech folks and they are fine with it. This is supported by copy-pasting from the URL address bar in most browser (e.g. Chrome does not show it, but when you copy the URL you also get the scheme).
So, shortly put, **unless there is a very strong reason not to request the scheme, I think you should only accept only valid URLs, that is with http or https.**