Click on cross on top right to disable it from showing it in new tab page. Not a security issue.

I strongly disagree with your response and I think that this is a serious privacy issue that you need to address. Imagine of a computer in a libary with a single Windows account and Chrome installed. It lets the user of the pc see what the logged in area of a website that the previous user have visited looks like (showing images, text, etc which is especially critical if this is a web based email service as Gmail, Inbox etc - it means the user can see the emails of a previous user!).

Moreover I just found out that Chrome does this for all websites and not just Inbox by Gmail. As you understand this is a pretty serious privacy issue. Please consider this as a Coordinated Vulnerability Disclosure. My aim is for the world and its users to have secure software that does not give away their privacy. This is the reason I contacted you first and I didn't went public with a Full Public Disclosure. As per Coordinated Vulnerability Disclosure standards, I am giving you 90 days of time frame to fix the issue otherwise I will have to go public for the users best interest.

I'm here for any other information you may want.
Best Regards

Hi again,

As I see in Version 69 you have fixed the issue but you gave me no credits or bug bounty. Is this by mistake ? Or you just ignore me? 

Please look up into the issue and let me know. If I don't get a reply from you within 3 days I will consider that you just ignore me and I will go public with this.

Best Regards,
Athanasios Emmanouilidis

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot