diff --git a/bridges/AcrimedBridge.php b/bridges/AcrimedBridge.php
index 3ca8e80..8b40d1d 100644
--- a/bridges/AcrimedBridge.php
+++ b/bridges/AcrimedBridge.php
@@ -16,7 +16,7 @@ class AcrimedBridge extends FeedExpander {
 
 		$articlePage = getSimpleHTMLDOM($newsItem->link);
 		$article = sanitize($articlePage->find('article.article1', 0)->innertext);
-		$article = defaultImageSrcTo($article, static::URI);
+		$article = defaultLinkTo($article, static::URI);
 		$item['content'] = $article;
 
 		return $item;
diff --git a/bridges/WorldOfTanksBridge.php b/bridges/WorldOfTanksBridge.php
index 1cc41b7..a894f6e 100644
--- a/bridges/WorldOfTanksBridge.php
+++ b/bridges/WorldOfTanksBridge.php
@@ -63,7 +63,7 @@ class WorldOfTanksBridge extends BridgeAbstract {
 		debugMessage('loading page ' . $item['uri']);
 		$articlePage = getSimpleHTMLDOMCached($item['uri']);
 		$content = $articlePage->find('.l-content', 0);
-		defaultImageSrcTo($content, self::URI);
+		defaultLinkTo($content, self::URI);
 		$item['title'] = $content->find('h1', 0)->innertext;
 		$item['content'] = $content->find('.b-content', 0)->innertext;
 		$item['timestamp'] = $content->find('.b-statistic_time', 0)->getAttribute("data-timestamp");
diff --git a/caches/FileCache.php b/caches/FileCache.php
index c8e4982..59bced9 100644
--- a/caches/FileCache.php
+++ b/caches/FileCache.php
@@ -8,11 +8,13 @@ class FileCache implements CacheInterface {
 	protected $param;
 
 	public function loadData(){
-		return json_decode(file_get_contents($this->getCacheFile()), true);
+		return unserialize(file_get_contents($this->getCacheFile()));
 	}
 
 	public function saveData($datas){
-		$writeStream = file_put_contents($this->getCacheFile(), json_encode($datas, JSON_PRETTY_PRINT));
+		// Notice: We use plain serialize() here to reduce memory footprint on
+		// large input data.
+		$writeStream = file_put_contents($this->getCacheFile(), serialize($datas));
 
 		if($writeStream === false) {
 			throw new \Exception("Cannot write the cache... Do you have the right permissions ?");
@@ -39,7 +41,7 @@ class FileCache implements CacheInterface {
 			);
 
 			foreach($cacheIterator as $cacheFile){
-				if(in_array($cacheFile->getBasename(), array('.', '..')))
+				if(in_array($cacheFile->getBasename(), array('.', '..', '.gitkeep')))
 					continue;
 				elseif($cacheFile->isFile()){
 					if(filemtime($cacheFile->getPathname()) < time() - $duration)
@@ -110,6 +112,8 @@ class FileCache implements CacheInterface {
 			throw new \Exception('Call "setParameters" first!');
 		}
 
-		return hash('md5', http_build_query($this->param)) . '.cache';
+		// Change character when making incompatible changes to prevent loading
+		// errors due to incompatible file contents         \|/
+		return hash('md5', http_build_query($this->param) . 'A') . '.cache';
 	}
 }
diff --git a/lib/html.php b/lib/html.php
index 1b9b5ab..d5f6667 100644
--- a/lib/html.php
+++ b/lib/html.php
@@ -278,12 +278,21 @@ $keptText = array()){
 	return $htmlContent;
 }
 
-function defaultImageSrcTo($content, $server){
+function defaultLinkTo($content, $server){
 	foreach($content->find('img') as $image){
-		if(is_null(strpos($image->src, "http"))
-			&& is_null(strpos($image->src, "//"))
-			&& is_null(strpos($image->src, "data:")))
+		if(strpos($image->src, 'http') === false
+		&& strpos($image->src, '//') === false
+		&& strpos($image->src, 'data:') === false)
 			$image->src = $server . $image->src;
 	}
+
+	foreach($content->find('a') as $anchor){
+		if(strpos($anchor->href, 'http') === false
+		&& strpos($anchor->href, '//') === false
+		&& strpos($anchor->href, '#') !== 0
+		&& strpos($anchor->href, '?') !== 0)
+			$anchor->href = $server . $anchor->href;
+	}
+
 	return $content;
 }