What's driving this request is a web page that is extremely focused on performance. The page loads "progressively". It's similar to lazy loading. The customer request is the capability to send information to Tealeaf in the simplest way possible before the full library loads. The customer will be able to report on things that happen very early in the page's life cycle. This is a blind spot for them today. Imagine that the collector hosts a 1 pixel image. collector.tealeaf.ibmcloud.com/collector/preload.jpg?foo=bar Name value pairs could be included with this request inline when the page loads initially. Additionally, super light javascript can take advantage of this tool on the collector. Once the full library loads, replay and the full Tealeaf suite of tools would be available normally. Customer of course understands that replay won't be available. They are just trying to get visibility closer and closer to the "big bang".