Hello,No, it's the Adobe mbox.js file. It's a DTM implementation. It was showing on all browsers. It was as of today, the preview link don't work and my visual compositor doesn't work, so I've raised this with the Support team.

Hello,I have an A/B test running that adds an extra link at the end of the mobile menu (img attached). After the updates on 21 April, the link is rendered twice and now I have to links which are the same. The java code used: menuClaimLink.append('<li><a href="claims.html" target="_blank">Make a clai...