Possible to add input validation

[jeradin]

Possible to add input validation

[adam-jones-net]

This is a quick fix and doesn't solve all issues, in fact it makes more issues.

1. compatibility on old browsers
2. the specification for browers url validation that is run when a field is set to type="url" ensures that the url you enter MUST start with http://, https:// etc. Yet this is in direct contradiction to how the plugin currently works. As anyone who uses the plugin will have seen, a tip on screen states you don't have to add http as it will be done by the plugin if needed.

[adam-jones-net]

+1 though for a propper fix on this! The sole reason I downloaded the plugin was to have an ACF field that included url validation and this doesn't do it!

[Woolball]

Yes, you are right.

One possibility is to use a regular expression. There is a lot of choice on this front as it appears that url validation is not simple to achieve for the general case:
http://mathiasbynens.be/demo/url-regex

I ended up using a simple regular expression with a custom-generated form field.

[Jeradin]

Sorry for the long delay, if anyone is still using this it now validates in the admin section and also uses HTML5 type="url" for validation.