diff --git a/htdocs/core/class/lessc.class.php b/htdocs/core/class/lessc.class.php
index 4ff2c1cc8ee..6a67c8cb2b5 100644
--- a/htdocs/core/class/lessc.class.php
+++ b/htdocs/core/class/lessc.class.php
@@ -2452,6 +2452,13 @@ class lessc_parser {
 		}
 	}
 
+	/**
+	 * Parse a string
+	 *
+	 * @param 	string	$buffer		String to parse
+	 * @throws exception
+	 * @return NULL|stdclass
+	 */
 	public function parse($buffer) {
 		$this->count = 0;
 		$this->line = 1;
@@ -2473,13 +2480,17 @@ class lessc_parser {
 			while (false !== $this->parseChunk());
 
 			if ($this->count != strlen($this->buffer))
-				$this->throwError();
+			{
+				$this->throwError('parse error count '.$this->count.' != len buffer '.strlen($this->buffer));
+			}
 
-				// TODO report where the block was opened
-				if ( !property_exists($this->env, 'parent') || !is_null($this->env->parent) )
-					throw new exception('parse error: unclosed block');
+			// TODO report where the block was opened
+			if (!property_exists($this->env, 'parent') || !is_null($this->env->parent))
+			{
+				throw new exception('parse error: unclosed block');
+			}
 
-					return $this->env;
+			return $this->env;
 		}
 
 		/**
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 52dad20c640..994426412ba 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -5662,24 +5662,29 @@ function dol_htmlentities($string, $flags = null, $encoding = 'UTF-8', $double_e
  *	If not, it will we considered not HTML encoded even if it is by FPDF.
  *	Example, if string contains euro symbol that has ascii code 128
  *
- *	@param	string	$s      String to check
- *	@return	int     		0 if bad iso, 1 if good iso
+ *	@param	string		$s      	String to check
+ *  @param	string		$clean		Clean if it is not an ISO. Warning, if file is utf8, you will get a bad formated file.
+ *	@return	int|string  	   		0 if bad iso, 1 if good iso, Or the clean string if $clean is 1
  */
-function dol_string_is_good_iso($s)
+function dol_string_is_good_iso($s, $clean = 0)
 {
 	$len=dol_strlen($s);
+	$out= '';
 	$ok=1;
-	for($scursor=0;$scursor<$len;$scursor++)
+	for($scursor = 0; $scursor < $len; $scursor++)
 	{
 		$ordchar=ord($s[$scursor]);
 		//print $scursor.'-'.$ordchar.'<br>';
 		if ($ordchar < 32 && $ordchar != 13 && $ordchar != 10) { $ok=0; break; }
-		if ($ordchar > 126 && $ordchar < 160) { $ok=0; break; }
+		elseif ($ordchar > 126 && $ordchar < 160) { $ok=0; break; }
+		elseif ($clean) {
+			$out.= $s[$scursor];
+		}
 	}
+	if ($clean) return $out;
 	return $ok;
 }
 
-
 /**
  *	Return nb of lines of a clear text
  *
diff --git a/htdocs/website/index.php b/htdocs/website/index.php
index 004033474f7..ae07c4c0c0c 100644
--- a/htdocs/website/index.php
+++ b/htdocs/website/index.php
@@ -667,6 +667,13 @@ if ($action == 'addcontainer')
 					else
 					{
 						// Clean some comment
+						//$tmpgeturl['content'] = dol_string_is_good_iso($tmpgeturl['content'], 1);
+						//$tmpgeturl['content'] = utf8_encode(utf8_decode($tmpgeturl['content']));
+						//$tmpgeturl['content'] = mb_convert_encoding($tmpgeturl['content'], 'UTF-8', 'UTF-8');
+						//$tmpgeturl['content'] = remove_bs($tmpgeturl['content']);
+						//$tmpgeturl['content'] = str_replace('$screen-md-max', 'auto', $tmpgeturl['content']);
+
+						//var_dump($tmpgeturl['content']);exit;
 						$tmpgeturl['content'] = preg_replace('/\/\*\s+CSS content[a-z\s]*\s+\*\//', '', $tmpgeturl['content']);
 
 						//dol_mkdir(dirname($filetosave));
@@ -694,7 +701,7 @@ if ($action == 'addcontainer')
 							//$pagecsscontent.=$tmpgeturl['content']."\n";
 						} catch (exception $e) {
 							//echo "failed to compile lessc";
-							dol_syslog("Failed to compile the CSS ".$urltograbbis." that we caught, with lessc: ".$e->getMessage(), LOG_WARNING);
+							dol_syslog("Failed to compile the CSS from URL ".$urltograbbis." with lessc: ".$e->getMessage(), LOG_WARNING);
 							$pagecsscontent.=$tmpgeturl['content']."\n";
 						}