There is no known attribute named `data=` for the `<input>` element.

# How do I fix this ?

Remove the `data=` attribute and you should be good to go.

# Resources

* [Attribute X not allowed on element Y at this point.](http://help.simplytestable.com/errors/html-validation/attribute-x-not-allowed-on-element-y-at-this-point/)