fix: avoid unnecessary lowercase coersion in component name validation

close vuejs#7237
aJean · Aug 19, 2020 · 61cb56f · 61cb56f
1 parent b2ca902
commit 61cb56f
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/core/util/options.js b/src/core/util/options.js
@@ -260,8 +260,7 @@ export function validateComponentName (name: string) {
       'and must start with a letter.'
     )
   }
-  const lower = name.toLowerCase()
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name