1 files changed, 4 insertions, 0 deletions
diff --git a/src/ng/compile.js b/src/ng/compile.js
index fce6f34e..55de18ec 100644
--- a/src/ng/compile.js
+++ b/src/ng/compile.js
@@ -178,6 +178,7 @@ function $CompileProvider($provide) {
    * @returns {ng.$compileProvider} Self for chaining.
    */
    this.directive = function registerDirective(name, directiveFactory) {
+    assertNotHasOwnProperty(name, 'directive');
     if (isString(name)) {
       assertArg(directiveFactory, 'directiveFactory');
       if (!hasDirectives.hasOwnProperty(name)) {
@@ -1175,6 +1176,9 @@ function $CompileProvider($provide) {
           dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;
         } else if (key == 'style') {
           $element.attr('style', $element.attr('style') + ';' + value);
+          // `dst` will never contain hasOwnProperty as DOM parser won't let it.
+          // You will get an "InvalidCharacterError: DOM Exception 5" error if you
+          // have an attribute like "has-own-property" or "data-has-own-property", etc.
         } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {
           dst[key] = value;
           dstAttr[key] = srcAttr[key];