Use final URI host when getting relative images as cover.

It fixes #12, mainly done for google.com pages.

Author: j3j5

src/Parsers/HtmlParser.php

@@ -11,6 +11,8 @@
 use Dusterio\LinkPreview\Readers\HttpReader;
 use Dusterio\LinkPreview\Models\HtmlPreview;
 use Symfony\Component\DomCrawler\Crawler;
+use GuzzleHttp\Psr7\Uri;
+use GuzzleHttp\Psr7\UriResolver;
 
 /**
  * Class HtmlParser
@@ -180,6 +182,11 @@ protected function parseHtml(LinkInterface $link)
 
         if (!isset($cover) && count($images)) $cover = $images[0];
 
+        $coverUri = new Uri($cover);
+        if (!Uri::isAbsolute($coverUri)) {
+            $cover = (string) UriResolver::resolve($link->getEffectiveUrl(), $coverUri);
+        }
+
         return compact('cover', 'title', 'description', 'images', 'video', 'videoType');
     }
 }