Should not magically convert kebab-cased values to camelCased values

normalize.js

@@ -3,5 +3,5 @@
 module.exports = normalize
 
 function normalize(value) {
-  return value.toLowerCase().replace(/\b[:-]\b/g, '')
+  return value.toLowerCase()
 }

readme.md

@@ -127,8 +127,7 @@ Yields:
 
 Get the cleaned case-insensitive form of an attribute or a property.
 
-This removed all non-alphanumerical characters from `name`, and lowercases
-the result.
+This lowercases the `name` and return the result.
 
 #### Parameters
 
@@ -150,6 +149,7 @@ the result.
 info.html.normal[info.normalize('for')] // => 'htmlFor'
 info.svg.normal[info.normalize('VIEWBOX')] // => 'viewBox'
 info.html.normal[info.normalize('unknown')] // => undefined
+info.html.normal[info.normalize('accept-charset')] // => 'acceptCharset'
 ```
 
 ### `propertyInformation.html`

test.js

@@ -208,6 +208,12 @@ test('normalize', function(t) {
     'attribute delimiters should remain if not preceding a word boundary (GH-7)'
   )
 
+  t.equal(
+    normalize('class-name'),
+    'class-name',
+    'attribute delimiters should remain otherwise it will be handled as a different known property called className (GH-12)'
+  )
+
   t.equal(
     normalize('[cl]a[ss]'),
     '[cl]a[ss]',
@@ -310,6 +316,12 @@ test('find', function(t) {
     'should find aria properties'
   )
 
+  t.deepEqual(
+    find(information.html, 'class-name'),
+    {attribute: 'class-name', property: 'class-name'},
+    'should not handle class-name as class property (GH-12)'
+  )
+
   t.test('data', function(st) {
     var mapping = {
       'data-alpha': 'dataAlpha',