Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

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oren@ravendb.net

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AI Agents, powered by your database - Bring AI into your applications with context, tools, and your data

May 04 2012

Strange production errors

time to read 1 min | 135 words

The following code cause a really strange error in production:

new MailAddress("test@gmail.com");

The specified string is not in the form required for an e-mail address.

Huh?!

Obviously it is!

After immediately leaping to the conclusion that .NET is crap and I should immediately start writing my own virtual machine, I decided to dig a little deeper:

Character	Code
t	116
e	101
s	115
t	116
@	64
g	103
m	109
a	97
i	105
l	108
.	46
?	8203
c	99
o	111
m	109

8203 stands for U+200B or zero width space.

I guess that someone with a software testing background decided to get medieval on one of our systems.

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