refactor(ssr): adjust ssr fragment anchor content

packages/compiler-ssr/src/ssrCodegenTransform.ts

@@ -111,7 +111,7 @@ export function processChildren(
   asFragment = false
 ) {
   if (asFragment) {
-    context.pushStringPart(`<!--1-->`)
+    context.pushStringPart(`<!--[-->`)
   }
   for (let i = 0; i < children.length; i++) {
     const child = children[i]
@@ -136,7 +136,7 @@ export function processChildren(
     }
   }
   if (asFragment) {
-    context.pushStringPart(`<!--0-->`)
+    context.pushStringPart(`<!--]-->`)
   }
 }
 

packages/compiler-ssr/src/transforms/ssrVFor.ts

@@ -33,12 +33,12 @@ export function ssrProcessFor(node: ForNode, context: SSRTransformContext) {
     needFragmentWrapper
   )
   // v-for always renders a fragment
-  context.pushStringPart(`<!--1-->`)
+  context.pushStringPart(`<!--[-->`)
   context.pushStatement(
     createCallExpression(context.helper(SSR_RENDER_LIST), [
       node.source,
       renderLoop
     ])
   )
-  context.pushStringPart(`<!--0-->`)
+  context.pushStringPart(`<!--]-->`)
 }