diff --git a/framework/yii/base/Module.php b/framework/yii/base/Module.php
index 741ed14..2bc42e3 100644
--- a/framework/yii/base/Module.php
+++ b/framework/yii/base/Module.php
@@ -605,7 +605,6 @@ abstract class Module extends Component
 		if ($route === '') {
 			$route = $this->defaultRoute;
 		}
-		$route = trim($route, '/');
 		if (($pos = strpos($route, '/')) !== false) {
 			$id = substr($route, 0, $pos);
 			$route = substr($route, $pos + 1);
diff --git a/framework/yii/web/Request.php b/framework/yii/web/Request.php
index 03d37bc..d864d95 100644
--- a/framework/yii/web/Request.php
+++ b/framework/yii/web/Request.php
@@ -417,13 +417,13 @@ class Request extends \yii\base\Request
 	 */
 	public function setPathInfo($value)
 	{
-		$this->_pathInfo = trim($value, '/');
+		$this->_pathInfo = ltrim($value, '/');
 	}
 
 	/**
 	 * Resolves the path info part of the currently requested URL.
 	 * A path info refers to the part that is after the entry script and before the question mark (query string).
-	 * The starting and ending slashes are both removed.
+	 * The starting slashes are both removed (ending slashes will be kept).
 	 * @return string part of the request URL that is after the entry script and before the question mark.
 	 * Note, the returned path info is decoded.
 	 * @throws InvalidConfigException if the path info cannot be determined due to unexpected server configuration
@@ -465,7 +465,7 @@ class Request extends \yii\base\Request
 			throw new InvalidConfigException('Unable to determine the path info of the current request.');
 		}
 
-		return trim($pathInfo, '/');
+		return ltrim($pathInfo, '/');
 	}
 
 	/**
diff --git a/framework/yii/web/UrlManager.php b/framework/yii/web/UrlManager.php
index bd25dca..ce93548 100644
--- a/framework/yii/web/UrlManager.php
+++ b/framework/yii/web/UrlManager.php
@@ -29,6 +29,7 @@ class UrlManager extends Component
 	/**
 	 * @var boolean whether to enable strict parsing. If strict parsing is enabled, the incoming
 	 * requested URL must match at least one of the [[rules]] in order to be treated as a valid request.
+	 * Otherwise, the path info part of the request will be treated as the requested route.
 	 * This property is used only when [[enablePrettyUrl]] is true.
 	 */
 	public $enableStrictParsing = false;
@@ -181,7 +182,7 @@ class UrlManager extends Component
 			}
 
 			$suffix = (string)$this->suffix;
-			if ($suffix !== '' && $suffix !== '/' && $pathInfo !== '') {
+			if ($suffix !== '' && $pathInfo !== '') {
 				$n = strlen($this->suffix);
 				if (substr($pathInfo, -$n) === $this->suffix) {
 					$pathInfo = substr($pathInfo, 0, -$n);
diff --git a/framework/yii/web/UrlRule.php b/framework/yii/web/UrlRule.php
index 4b15601..ec73c92 100644
--- a/framework/yii/web/UrlRule.php
+++ b/framework/yii/web/UrlRule.php
@@ -192,8 +192,7 @@ class UrlRule extends Object
 					// suffix alone is not allowed
 					return false;
 				}
-			} elseif ($suffix !== '/') {
-				// we allow the ending '/' to be optional if it is a suffix
+			} else {
 				return false;
 			}
 		}
diff --git a/tests/unit/framework/web/UrlManagerTest.php b/tests/unit/framework/web/UrlManagerTest.php
index d192902..efa6695 100644
--- a/tests/unit/framework/web/UrlManagerTest.php
+++ b/tests/unit/framework/web/UrlManagerTest.php
@@ -163,9 +163,9 @@ class UrlManagerTest extends TestCase
 		$result = $manager->parseRequest($request);
 		$this->assertEquals(array('module/site/index', array()), $result);
 		// pathinfo with trailing slashes
-		$request->pathInfo = 'module/site/index/';
+		$request->pathInfo = '/module/site/index/';
 		$result = $manager->parseRequest($request);
-		$this->assertEquals(array('module/site/index', array()), $result);
+		$this->assertEquals(array('module/site/index/', array()), $result);
 
 		// pretty URL rules
 		$manager = new UrlManager(array(
@@ -182,10 +182,10 @@ class UrlManagerTest extends TestCase
 		$request->pathInfo = 'post/123/this+is+sample';
 		$result = $manager->parseRequest($request);
 		$this->assertEquals(array('post/view', array('id' => '123', 'title' => 'this+is+sample')), $result);
-		// matching pathinfo with trailing slashes
+		// trailing slash is significant
 		$request->pathInfo = 'post/123/this+is+sample/';
 		$result = $manager->parseRequest($request);
-		$this->assertEquals(array('post/view', array('id' => '123', 'title' => 'this+is+sample')), $result);
+		$this->assertEquals(array('post/123/this+is+sample/', array()), $result);
 		// empty pathinfo
 		$request->pathInfo = '';
 		$result = $manager->parseRequest($request);
diff --git a/tests/unit/framework/web/UrlRuleTest.php b/tests/unit/framework/web/UrlRuleTest.php
index f697805..3f1c070 100644
--- a/tests/unit/framework/web/UrlRuleTest.php
+++ b/tests/unit/framework/web/UrlRuleTest.php
@@ -620,7 +620,8 @@ class UrlRuleTest extends TestCase
 					'suffix' => '/',
 				),
 				array(
-					array('posts', 'post/index'),
+					array('posts/', 'post/index'),
+					array('posts', false),
 					array('a', false),
 				),
 			),