diff --git a/src/book.js b/src/book.js
index 47361b6..c36a033 100644
--- a/src/book.js
+++ b/src/book.js
@@ -1019,8 +1019,11 @@ EPUBJS.Book.prototype.gotoHref = function(url, defer){
 	split = url.split("#");
 	chapter = split[0];
 	section = split[1] || false;
-	// absoluteURL = (chapter.search("://") === -1) ? (this.settings.contentsPath + chapter) : chapter;
-	relativeURL = chapter.replace(this.settings.contentsPath, '');
+	if (chapter.search("://") == -1) {
+		relativeURL = chapter.replace(EPUBJS.core.uri(this.settings.contentsPath).path, '');
+	} else {
+		relativeURL = chapter.replace(this.settings.contentsPath, '');
+	}
 	spinePos = this.spineIndexByURL[relativeURL];
 
 	//-- If link fragment only stay on current chapter
diff --git a/src/core.js b/src/core.js
index f2b03dd..a1e6433 100644
--- a/src/core.js
+++ b/src/core.js
@@ -93,6 +93,9 @@ EPUBJS.core.request = function(url, type, withCredentials) {
 	if(!type) {
 		uri = EPUBJS.core.uri(url);
 		type = uri.extension;
+		type = {
+			'htm': 'html'
+		}[type] || type;
 	}
 
 	if(type == 'blob'){