UserAgent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36

Example URL:

Steps to reproduce the problem:
1. Send Mail from another account to your gmail account which includes Google Adsense Code.
2. Check your mail, it will display unread(new) mail in list with adsense code(Screenshot1.jpg)
3. But when you open that mail, you will see that the code with "<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>" 
will converted to 
"<script async src="//"></script>" (Screenshot2.jpg)

What is the expected behavior?

What went wrong?
One of my friend send me the Google Adsense code in Gmail.I received new mail in list with adsense code(Screenshot1.jpg) 
but when I open that mail, the code with "<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>" 
is converted to 
"<script async src="//"></script>" (Screenshot2.jpg)

I dont know why is this so. You can check my attached scrrenshot.

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? No firefox

Chrome version: 51.0.2704.106  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 22.0 r0
 

Deleted: screenshot1.JPG 116 KB

	screenshot1.JPG 116 KB View Download

Deleted: screenshot2.JPG 80.5 KB

	screenshot2.JPG 80.5 KB View Download