<!-- ### Checklist for this issue If your issue is about the regex used in `email` rule, please note that as of version 1.12.0 this plugin is using the same regular expression that the HTML5 specification suggests for browsers to use (https://html.spec.whatwg.org/multipage/forms.html#valid-e-mail-address). We will follow their lead and use the same check. If you think the specification is wrong, please report the issue to them. If you have different requirements, consider using a custom method. In case you need to adjust the built-in validation regular expression patterns, please follow the documentation (http://jqueryvalidation.org/jQuery.validator.methods/). --> ### Subject of the issue <!-- Describe your issue here. --> ### Your environment * version of `jquery-validate`: * which browser and its version: ### Steps to reproduce <!-- Tell us how to reproduce this issue. If possible, please provide a working demo in JSFiddle (https://jsfiddle.net) or JSBin (https://jsbin.com/). --> ### Expected behaviour it should check it match ### Actual behaviour it actually says it dont match but it is