In configuring an Amazon Route 53 health check, a SysOps Administrator selects ‘Yes’ to the...

In configuring an Amazon Route 53 health check, a SysOps Administrator selects ‘Yes’ to the String Matching option in the Advanced Configuration section. In the Search String box, the Administrator types the following text: /html.

This is to ensure that the entire page is loading during the health check. Within 5 minutes of enabling the

health check, the Administrator receives an alert stating that the check failed. However, when the

Administrator navigates to the page, it loads successfully.

What is the MOST likely cause of this false alarm?