add comment tag only when hydratable

src/compiler/compile/render_ssr/handlers/HtmlTag.ts

@@ -1,8 +1,8 @@
 import Renderer, { RenderOptions } from '../Renderer';
 import RawMustacheTag from '../../nodes/RawMustacheTag';
 
-export default function(node: RawMustacheTag, renderer: Renderer, _options: RenderOptions) {
+export default function(node: RawMustacheTag, renderer: Renderer, options: RenderOptions) {
-	renderer.add_string('<!-- HTML_TAG_START -->');
+	if (options.hydratable) renderer.add_string('<!-- HTML_TAG_START -->');
 	renderer.add_expression(node.expression.node);
-	renderer.add_string('<!-- HTML_TAG_END -->');
+	if (options.hydratable) renderer.add_string('<!-- HTML_TAG_END -->');
 }