diff --git a/modules/angular2/src/core/compiler/pipeline/directive_parser.js b/modules/angular2/src/core/compiler/pipeline/directive_parser.js
index 864f2ceec2..2c60b0f7f2 100644
--- a/modules/angular2/src/core/compiler/pipeline/directive_parser.js
+++ b/modules/angular2/src/core/compiler/pipeline/directive_parser.js
@@ -1,5 +1,5 @@
 import {isPresent, isBlank, BaseException, assertionsEnabled, RegExpWrapper} from 'angular2/src/facade/lang';
-import {List, MapWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
+import {List, MapWrapper} from 'angular2/src/facade/collection';
 import {DOM} from 'angular2/src/dom/dom_adapter';
 import {SelectorMatcher} from '../selector';
 import {CssSelector} from '../selector';
@@ -10,9 +10,6 @@ import {CompileStep} from './compile_step';
 import {CompileElement} from './compile_element';
 import {CompileControl} from './compile_control';
 
-import {isSpecialProperty} from './element_binder_builder';
-import {dashCaseToCamelCase, camelCaseToDashCase} from './util';
-
 var PROPERTY_BINDING_REGEXP = RegExpWrapper.create('^ *([^\\s\\|]+)');
 
 /**
@@ -60,53 +57,15 @@ export class DirectiveParser extends CompileStep {
     });
 
     // Note: We assume that the ViewSplitter already did its work, i.e. template directive should
-    // only be present on <template> elements any more!
+    // only be present on <template> elements!
     var isTemplateElement = DOM.isTemplateElement(current.element);
-    var matchedProperties; // StringMap - used in dev mode to store all properties that have been matched
 
     this._selectorMatcher.match(cssSelector, (selector, directive) => {
-      matchedProperties = updateMatchedProperties(matchedProperties, selector, directive);
-      checkDirectiveValidity(directive, current, isTemplateElement);
-      current.addDirective(directive);
+      current.addDirective(checkDirectiveValidity(directive, current, isTemplateElement));
     });
-
-    // raise error if some directives are missing
-    checkMissingDirectives(current, matchedProperties, isTemplateElement);
   }
 }
 
-// calculate all the properties that are used or interpreted by all directives
-// those properties correspond to the directive selectors and the directive bindings
-function updateMatchedProperties(matchedProperties, selector, directive) {
-  if (assertionsEnabled()) {
-    var attrs = selector.attrs;
-    if (!isPresent(matchedProperties)) {
-      matchedProperties = StringMapWrapper.create();
-    }
-    if (isPresent(attrs)) {
-      for (var idx = 0; idx<attrs.length; idx+=2) {
-        // attribute name is stored on even indexes
-        StringMapWrapper.set(matchedProperties, dashCaseToCamelCase(attrs[idx]), true);
-      }
-    }
-    // some properties can be used by the directive, so we need to register them
-    if (isPresent(directive.annotation) && isPresent(directive.annotation.bind)) {
-      var bindMap = directive.annotation.bind;
-      StringMapWrapper.forEach(bindMap, (value, key) => {
-        // value is the name of the property that is interpreted
-        // e.g. 'myprop' or 'myprop | double' when a pipe is used to transform the property
-
-        // keep the property name and remove the pipe
-        var bindProp = RegExpWrapper.firstMatch(PROPERTY_BINDING_REGEXP, value);
-        if (isPresent(bindProp) && isPresent(bindProp[1])) {
-          StringMapWrapper.set(matchedProperties, dashCaseToCamelCase(bindProp[1]), true);
-        }
-      });
-    }
-  }
-  return matchedProperties;
-}
-
 // check if the directive is compatible with the current element
 function checkDirectiveValidity(directive, current, isTemplateElement) {
   var isComponent = directive.annotation instanceof Component || directive.annotation instanceof DynamicComponent;
@@ -125,26 +84,6 @@ function checkDirectiveValidity(directive, current, isTemplateElement) {
   } else if (isComponent && alreadyHasComponent) {
     throw new BaseException(`Multiple component directives not allowed on the same element - check ${current.elementDescription}`);
   }
-}
 
-// validates that there is no missing directive - dev mode only
-function checkMissingDirectives(current, matchedProperties, isTemplateElement) {
-  if (assertionsEnabled()) {
-    var ppBindings=current.propertyBindings;
-    if (isPresent(ppBindings)) {
-      // check that each property corresponds to a real property or has been matched by a directive
-      MapWrapper.forEach(ppBindings, (expression, prop) => {
-        if (!DOM.hasProperty(current.element, prop) && !isSpecialProperty(prop)) {
-          if (!isPresent(matchedProperties) || !isPresent(StringMapWrapper.get(matchedProperties, prop))) {
-            throw new BaseException(`Missing directive to handle '${camelCaseToDashCase(prop)}' in ${current.elementDescription}`);
-          }
-        }
-      });
-    }
-    // template only store directives as attribute when they are not bound to expressions
-    // so we have to validate the expression case too (e.g. !if="condition")
-    if (isTemplateElement && !current.isViewRoot && !isPresent(current.viewportDirective)) {
-      throw new BaseException(`Missing directive to handle: ${current.elementDescription}`);
-    }
-  }
+  return directive;
 }
diff --git a/modules/angular2/src/core/compiler/pipeline/element_binder_builder.js b/modules/angular2/src/core/compiler/pipeline/element_binder_builder.js
index d252295d50..bd2059f251 100644
--- a/modules/angular2/src/core/compiler/pipeline/element_binder_builder.js
+++ b/modules/angular2/src/core/compiler/pipeline/element_binder_builder.js
@@ -93,12 +93,16 @@ function styleSetterFactory(styleName:string, stylesuffix:string) {
   return setterFn;
 }
 
-// tells if an attribute is handled by the ElementBinderBuilder step
-export function isSpecialProperty(propName:string) {
-  return StringWrapper.startsWith(propName, ATTRIBUTE_PREFIX)
-        || StringWrapper.startsWith(propName, CLASS_PREFIX)
-        || StringWrapper.startsWith(propName, STYLE_PREFIX)
-        || StringMapWrapper.contains(DOM.attrToPropMap, propName);
+const ROLE_ATTR = 'role';
+function roleSetter(element, value) {
+  if (isString(value)) {
+    DOM.setAttribute(element, ROLE_ATTR, value);
+  } else {
+    DOM.removeAttribute(element, ROLE_ATTR);
+    if (isPresent(value)) {
+      throw new BaseException("Invalid role attribute, only string values are allowed, got '" + stringify(value) + "'");
+    }
+  }
 }
 
 /**
diff --git a/modules/angular2/test/core/compiler/integration_spec.js b/modules/angular2/test/core/compiler/integration_spec.js
index a8f3c61faa..61c0187bc1 100644
--- a/modules/angular2/test/core/compiler/integration_spec.js
+++ b/modules/angular2/test/core/compiler/integration_spec.js
@@ -2,6 +2,7 @@ import {
   AsyncTestCompleter,
   beforeEach,
   ddescribe,
+  xdescribe,
   describe,
   el,
   expect,
@@ -566,61 +567,57 @@ export function main() {
       }));
     });
 
-    if (assertionsEnabled()) {
+    xdescribe('Missing directive checks', () => {
 
-      function expectCompileError(inlineTpl, errMessage, done) {
-        tplResolver.setTemplate(MyComp, new Template({inline: inlineTpl}));
-        PromiseWrapper.then(compiler.compile(MyComp),
-          (value) => {
-            throw new BaseException("Test failure: should not have come here as an exception was expected");
-          },
-          (err) => {
-            expect(err.message).toEqual(errMessage);
-            done();
-          }
-        );
+      if (assertionsEnabled()) {
+
+        function expectCompileError(inlineTpl, errMessage, done) {
+          tplResolver.setTemplate(MyComp, new Template({inline: inlineTpl}));
+          PromiseWrapper.then(compiler.compile(MyComp),
+            (value) => {
+              throw new BaseException("Test failure: should not have come here as an exception was expected");
+            },
+            (err) => {
+              expect(err.message).toEqual(errMessage);
+              done();
+            }
+          );
+        }
+
+        it('should raise an error if no directive is registered for a template with template bindings', inject([AsyncTestCompleter], (async) => {
+          expectCompileError(
+            '<div><div template="if: foo"></div></div>',
+            'Missing directive to handle \'if\' in <div template="if: foo">',
+            () => async.done()
+          );
+        }));
+
+        it('should raise an error for missing template directive (1)', inject([AsyncTestCompleter], (async) => {
+          expectCompileError(
+            '<div><template foo></template></div>',
+            'Missing directive to handle: <template foo>',
+            () => async.done()
+          );
+        }));
+
+        it('should raise an error for missing template directive (2)', inject([AsyncTestCompleter], (async) => {
+          expectCompileError(
+            '<div><template *if="condition"></template></div>',
+            'Missing directive to handle: <template *if="condition">',
+            () => async.done()
+          );
+        }));
+
+        it('should raise an error for missing template directive (3)', inject([AsyncTestCompleter], (async) => {
+          expectCompileError(
+            '<div *if="condition"></div>',
+            'Missing directive to handle \'if\' in MyComp: <div *if="condition">',
+            () => async.done()
+          );
+        }));
       }
+    });
 
-      it('should raise an error if no directive is registered for an unsupported DOM property', inject([AsyncTestCompleter], (async) => {
-        expectCompileError(
-          '<div [some-prop]="foo"></div>',
-          'Missing directive to handle \'some-prop\' in MyComp: <div [some-prop]="foo">',
-          () => async.done()
-        );
-      }));
-
-      it('should raise an error if no directive is registered for a template with template bindings', inject([AsyncTestCompleter], (async) => {
-        expectCompileError(
-          '<div><div template="if: foo"></div></div>',
-          'Missing directive to handle \'if\' in <div template="if: foo">',
-          () => async.done()
-        );
-      }));
-
-      it('should raise an error for missing template directive (1)', inject([AsyncTestCompleter], (async) => {
-        expectCompileError(
-          '<div><template foo></template></div>',
-          'Missing directive to handle: <template foo>',
-          () => async.done()
-        );
-      }));
-
-      it('should raise an error for missing template directive (2)', inject([AsyncTestCompleter], (async) => {
-        expectCompileError(
-          '<div><template *if="condition"></template></div>',
-          'Missing directive to handle: <template *if="condition">',
-          () => async.done()
-        );
-      }));
-
-      it('should raise an error for missing template directive (3)', inject([AsyncTestCompleter], (async) => {
-        expectCompileError(
-          '<div *if="condition"></div>',
-          'Missing directive to handle \'if\' in MyComp: <div *if="condition">',
-          () => async.done()
-        );
-      }));
-    }
   });
 }