Current Status: Engineers are currently focusing efforts on a fix which may temporarily mitigate the issue until the underlying root cause is identified.
User Experience: Affected users are unable to select the Sites application tile from the Office 365 navigation menu. As a workaround, users are able to navigate directly to SharePoint Online site URLs.
Customer Impact: A few customers are reporting that they are experiencing this issue. A limited subset of users are affected by this issue as the impact to Active Directory is intermittent during the provisioning process.
Incident Start Time: Tuesday, June 16, 2015, at 12:00 AM UTC
Next Update by: Friday, June 26, 2015, at 8:00 PM UTC
This is from the admin panel of 0365 about sharepoint online. The chrome issue might cuased by this right now.