error handler in Blazor is a component that extends either the <code>ErrorBoundary</code> or <code>ErrorBoundaryBase</code> component to handle errors within a specified scope. For instance, if you place an error handler at the component level, it will handle any errors that occur within that component. The <code>ErrorBoundary</code> is the default error handler component, but you can also create custom error handlers.</p>
<hr class="my-4" />
<h1>The need for a custom error handler</h1>
<p>In web developmen