No template-for

This is the placeholder document.

The browser ignored <template for>, so the <?start> / <?end> ranges were never replaced. You are reading the fallback page that shipped in those ranges.

A browser with Declarative Partial Updates would have thrown this page away and filled in a different title, styles, and article from the templates at the bottom of the file.

Chrome 148+ can show the other page if chrome://flags/#enable-experimental-web-platform-features is enabled. This file does not load the polyfill, so support has to be native.