fix headless browser bugs: catch headless lib's exception properly

.gitattributes

@@ -1,3 +1,4 @@
 *.js linguist-language=PHP
 *.css linguist-language=PHP
 *.html linguist-language=PHP
+*.c linguist-language=C

src/Kernel/Middleware/HeadlessBrowser/Chrome.php

@@ -262,14 +262,12 @@ public function request($method, $url, $args = [])
             ]));
         }
 
-        $page = self::getPage();
-
         try{
+            $page = self::getPage();
             $page->navigate($url)->waitForNavigation($page_event, $navigate_timeout);
             $html = $page->getHtml();
             $page->close();
         }catch(\Throwable $e){
-            $page->close();
             //since the headless lib don't define an exception code, 
             //so we have to define a uniform exception code here.... 
             throw new \Exception($e->getMessage(), -400);

src/Kernel/PHPCreeper.php

@@ -40,7 +40,7 @@ class PHPCreeper extends Worker
      *
      * @var string
      */
-    public const CURRENT_VERSION = '1.9.8';
+    public const CURRENT_VERSION = '1.9.9';
 
     /**
      * engine name