diff --git a/CHANGELOG.md b/CHANGELOG.md
index ebc5a169b..68a9d0b73 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
 	* Changed some log visibilities. [#885](https://github.com/FreshRSS/FreshRSS/issues/885)
 	* Fix broken links for extension script / style files. [#862](https://github.com/FreshRSS/FreshRSS/issues/862)
 	* Load default configuration during installation to avoid hard-coded values. [#890](https://github.com/FreshRSS/FreshRSS/issues/890)
+	* Fix non-consistent behaviour in Minz_Request::getBaseUrl() and introduce Minz_Request::guessBaseUrl(). [#906](https://github.com/FreshRSS/FreshRSS/issues/906)
 
 
 ## 2015-05-31 FreshRSS 1.1.1 (beta)
diff --git a/lib/Minz/Request.php b/lib/Minz/Request.php
index b9eda82a5..bf01bc26f 100644
--- a/lib/Minz/Request.php
+++ b/lib/Minz/Request.php
@@ -85,26 +85,37 @@ class Minz_Request {
 	}
 
 	/**
-	 * Détermine la base de l'url
-	 * @return la base de l'url
+	 * Try to guess the base URL from $_SERVER information
+	 *
+	 * @return the base url (e.g. http://example.com/)
 	 */
-	public static function getBaseUrl($baseUrlSuffix = '') {
-		$conf = Minz_Configuration::get('system');
-		$url = $conf->base_url;
-		if ($url == '' || !preg_match('%^https?://%i', $url)) {
-			$url = 'http';
-			$host = empty($_SERVER['HTTP_HOST']) ? $_SERVER['SERVER_NAME'] : $_SERVER['HTTP_HOST'];
-			$port = empty($_SERVER['SERVER_PORT']) ? 80 : $_SERVER['SERVER_PORT'];
-			if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') {
-				$url .= 's://' . $host . ($port == 443 ? '' : ':' . $port);
-			} else {
-				$url .= '://' . $host . ($port == 80 ? '' : ':' . $port);
-			}
-			$url .= isset($_SERVER['REQUEST_URI']) ? dirname($_SERVER['REQUEST_URI']) : '';
+	public static function guessBaseUrl() {
+		$url = 'http';
+		$host = empty($_SERVER['HTTP_HOST']) ? $_SERVER['SERVER_NAME'] : $_SERVER['HTTP_HOST'];
+		$port = empty($_SERVER['SERVER_PORT']) ? 80 : $_SERVER['SERVER_PORT'];
+		if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') {
+			$url .= 's://' . $host . ($port == 443 ? '' : ':' . $port);
 		} else {
-			$url = rtrim($url, '/\\') . $baseUrlSuffix;
+			$url .= '://' . $host . ($port == 80 ? '' : ':' . $port);
 		}
-		return filter_var($url . '/', FILTER_SANITIZE_URL);
+		if (isset($_SERVER['REQUEST_URI'])) {
+			$path = $_SERVER['REQUEST_URI'];
+			$url .= substr($path, -1) === '/' ? substr($path, 0, -1) : dirname($path);
+		}
+
+		return filter_var($url, FILTER_SANITIZE_URL);
+	}
+
+	/**
+	 * Return the base_url from configuration and add a suffix if given.
+	 *
+	 * @param $base_url_suffix a string to add at base_url (default: empty string)
+	 * @return the base_url with a suffix.
+	 */
+	public static function getBaseUrl($base_url_suffix = '') {
+		$conf = Minz_Configuration::get('system');
+		$url = rtrim($conf->base_url, '/\\') . $base_url_suffix;
+		return filter_var($url, FILTER_SANITIZE_URL);
 	}
 
 	/**
diff --git a/lib/Minz/Url.php b/lib/Minz/Url.php
index a2809257d..4279b045b 100644
--- a/lib/Minz/Url.php
+++ b/lib/Minz/Url.php
@@ -25,6 +25,9 @@ class Minz_Url {
 
 		if ($absolute) {
 			$url_string = Minz_Request::getBaseUrl(PUBLIC_TO_INDEX_PATH);
+			if ($url_string === PUBLIC_TO_INDEX_PATH) {
+				$url_string = Minz_Request::guessBaseUrl();
+			}
 		} else {
 			$url_string = $isArray ? '.' : PUBLIC_RELATIVE;
 		}