Programming Tutorials

  Few console errors trigger immediate anxiety in Angular developers quite like   NG0500: Hydration Node Mismatch . If you have recently migrated to Angular 17+ or enabled non-destructive hydration in an existing project, you have likely encountered this. The application renders on the server, the HTML arrives at the browser, and then—flash—the screen flickers or console errors explode. The error message usually looks like this: NG0500: During hydration, Angular expected <table> but found <tbody>. This guide analyzes exactly why this happens at the DOM parsing level, provides the solution for the most common culprit (invalid HTML structure), and details how to handle edge cases where the DOM  must  differ. The Root Cause: DOM Reconciliation vs. HTML Parsing To fix NG0500, you must understand the mechanics of  Non-Destructive Hydration . In legacy Angular SSR (Server-Side Rendering), the client application would destroy the server-rendered HTML and re...