diff --git a/advagg_js_minify/jshrink.inc b/advagg_js_minify/jshrink.inc
index ca8bdc3..4d2400a 100644
--- a/advagg_js_minify/jshrink.inc
+++ b/advagg_js_minify/jshrink.inc
@@ -223,7 +223,7 @@ class Minifier
                 // new lines
                 case "\n":
                     // if the next line is something that can't stand alone preserve the newline
-                    if (strpos('(-+{[@', $this->b) !== false) {
+                    if ($this->b !== false && strpos('(-+{[@', $this->b) !== false) {
                         echo $this->a;
                         $this->saveString();
                         break;
@@ -266,7 +266,7 @@ class Minifier
                             // check for some regex that breaks stuff
                             if ($this->a === '/' && ($this->b === '\'' || $this->b === '"')) {
                                 $this->saveRegex();
-                                continue;
+                                continue 3;
                             }
 
                             echo $this->a;