Add ogp, video and audio to default sources, closes #196 (#200)

Author: s0ph1e

lib/config/defaults.js

@@ -16,7 +16,22 @@ var config = {
 		{ selector: 'link[rel*="icon"]', attr: 'href' },
 		{ selector: 'svg *[xlink\\:href]', attr: 'xlink:href' },
 		{ selector: 'svg *[href]', attr: 'href' },
-		{ selector: 'picture source', attr: 'srcset' }
+		{ selector: 'picture source', attr: 'srcset' },
+		{ selector: 'meta[property="og\\:image"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:image\\:url"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:image\\:secure_url"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:audio"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:audio\\:url"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:audio\\:secure_url"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:video"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:video\\:url"]', attr: 'content' },
+		{ selector: 'meta[property="og\\:video\\:secure_url"]', attr: 'content' },
+		{ selector: 'video', attr: 'src' },
+		{ selector: 'video source', attr: 'src' },
+		{ selector: 'video track', attr: 'src' },
+		{ selector: 'audio', attr: 'src' },
+		{ selector: 'audio source', attr: 'src' },
+		{ selector: 'audio track', attr: 'src' }
 	],
 	subdirectories: [
 		{ directory: 'images', extensions: ['.png', '.jpg', '.jpeg', '.gif', '.webp'] },