FYI: Email Field Validator Always Fails in iOS 7 Safari Browser

[John Boyer]

Hi All:

We’re using the latest version of Struts 2 in production and we’ve found that the client-side XML email validator always fails in the iOS 7.1 Safari browser. We haven’t tested it iOS 8 yet. However, removing the email validation from the following XML solved the problem.

<field name="user.email">
<field-validator type="email">
<param name="trim">true</param>
<message>Email address is invalid</message>
</field-validator>
</field>

Incidentally, the XML email validator works fine in Safari for Mac OS X.

Have a nice weekend.

Regards,

John Boyer
rodaxsoft.com

[Lukasz Lenart]

We’re using the latest version of Struts 2 in production and we’ve found that the client-side XML email validator always fails in the iOS 7.1 Safari browser. We haven’t tested it iOS 8 yet. However, removing the email validation from the following XML solved the problem.
<field name="user.email">
<field-validator type="email">
<param name="trim">true</param>
<message>Email address is invalid</message>
</field-validator>
</field>
Incidentally, the XML email validator works fine in Safari for Mac OS X.

This validator performs simple JS regex match on that expression [1] -
so I would assume iOS 7.1 has broken regex engine ;-)

[1] https://github.com/apache/struts/blob/09012d7e5f7177002893da3b2add091b04c62657/xwork-core/src/main/java/com/opensymphony/xwork2/validator/validators/EmailValidator.java#L83


Regards

[John Boyer]

Thank you Lukasz. We started using the free Mailgun email validation service on our server because it checks for mistyped domains and performs other checks. Learn more at http://blog.mailgun.com/free-email-validation-api-for-web-forms

I’ve implemented a Java client for Mailgun’s email validation service and it’s available at https://github.com/johnboyer/mailgun-manager

John Boyer
rodaxsoft.com

Post by Lukasz Lenart

We’re using the latest version of Struts 2 in production and we’ve found that the client-side XML email validator always fails in the iOS 7.1 Safari browser. We haven’t tested it iOS 8 yet. However, removing the email validation from the following XML solved the problem.
<field name="user.email">
<field-validator type="email">
<param name="trim">true</param>
<message>Email address is invalid</message>
</field-validator>
</field>
Incidentally, the XML email validator works fine in Safari for Mac OS X.

This validator performs simple JS regex match on that expression [1] -
so I would assume iOS 7.1 has broken regex engine ;-)
[1] https://github.com/apache/struts/blob/09012d7e5f7177002893da3b2add091b04c62657/xwork-core/src/main/java/com/opensymphony/xwork2/validator/validators/EmailValidator.java#L83
Regards
--
Łukasz
+ 48 606 323 122 http://www.lenart.org.pl/
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