Pretend this is a logged-in account page, search-results page with no ad slots, or any other page where Wiley would still want OE to know the user visited but has no inventory to fill.
The OE script tag is identical to the one on the page-with-ads. The only difference is this page doesn't load gpt.js and doesn't define any slots — so data.js's googletag.cmd.push never executes its callback.