How do I fix a coding error visible only on my computer?

Topic summary

A user is experiencing a coding error displaying on their website header that only appears on their computer, not on mobile devices or when others view the site. The error persists across three different browsers.

Visible Code:
The error shows what appears to be JavaScript code related to Boomerang (a performance monitoring tool), with some text appearing reversed or garbled.

Troubleshooting Steps Taken:

  • Ran 4 different spyware applications
  • None initially detected issues

Resolution:
The problem was traced to an application called “SurftoEarn” that was installed on the same day the issue began. The user did not knowingly download this software. Once removed, the display issue was resolved.

Key Takeaway:
This was a local computer issue caused by potentially unwanted software (PUP) rather than an actual website coding problem, explaining why it only appeared on one device.

Summarized with AI on November 8. AI used: claude-sonnet-4-5-20250929.

This is coming up on top of my header on my website. I have asked 3 other people and it does not show when they look it up. It is only on my computer, not phone and I have tried three different browsers. How do I remove it?

"); } else { win._boomrl = function() { bootstrap(); }; if (win.addEventListener) { win.addEventListener(“load”, win._boomrl, false); } else if (win.attachEvent) { win.attachEvent(“onload”, win._boomrl); } } doc.close(); } var link = document.createElement(“link”); if (link.relList && typeof link.relList.supports === “function” && link.relList.supports(“preload”) && (“as” in link)) { window.BOOMR.snippetMethod = “p”; link.href = window.BOOMR.url; link.rel = “preload”; link.as = “script”; link.addEventListener(“load”, promote); link.addEventListener(“error”, function() { iframeLoader(true); }); setTimeout(function() { if (!promoted) { iframeLoader(true); } }, LOADER_TIMEOUT); BOOMR_lstart = new Date().getTime(); parentNode.appendChild(link); } else { iframeLoader(false); } function boomerangSaveLoadTime(e) { window.BOOMR_onload = (e && e.timeStamp) || new Date().getTime(); } if (window.addEventListener) { window.addEventListener(“load”, boomerangSaveLoadTime, false); } else if (window.attachEvent) { window.attachEvent(“onload”, boomerangSaveLoadTime); } if (document.addEventListener) { document.addEventListener(“onBoomerangLoaded”, function(e) { e.detail.BOOMR.init({ ResourceTiming: { enabled: true, trackedResourceTypes: [“script”, “img”, “css”] }, }); e.detail.BOOMR.t_end = new Date().getTime(); }); } else if (document.attachEvent) { document.attachEvent(“onpropertychange”, function(e) { if (!e) e=event; if (e.propertyName === “onBoomerangLoaded”) { e.detail.BOOMR.init({ ResourceTiming: { enabled: true, trackedResourceTypes: [“script”, “img”, “css”] }, }); e.detail.BOOMR.t_end = new Date().getTime(); } }); } })();

Sure! It is KellysDressBoutique.com

Ran 4 different spyware apps on my system. None found anything. Finally discovered there was an app called SurftoEarn installed on my pc the day the problem started. Not sure where it came from. Definitely didn’t knowingly download it. Once removed, the issue went away. Check to see if you have that app or something else installed the day the problem started for you.