diff --git a/ChangeLog b/ChangeLog
index 5869c0c..75346ec 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Version 1.79b:
+--------------
+
+  - Improvement to directory listing detector.
+
 Version 1.78b:
 --------------
 
diff --git a/Makefile b/Makefile
index 37b23c4..6196ea3 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@
 #
 
 PROGNAME   = skipfish
-VERSION    = 1.78b
+VERSION    = 1.79b
 
 OBJFILES   = http_client.c database.c crawler.c analysis.c report.c
 INCFILES   = alloc-inl.h string-inl.h debug.h types.h http_client.h \
diff --git a/analysis.c b/analysis.c
index 20869fb..9a04056 100644
--- a/analysis.c
+++ b/analysis.c
@@ -1209,7 +1209,7 @@ static u8 is_javascript(struct http_response* res) {
 
     /* Illegal identifier, or too many whitespaces? Bail out. */
 
-    if (!isalnum(*text) && (!strchr(" \t\r\n_.", *text) ||
+    if (!isalnum(*text) && (!strchr(" \t\r\n_.$", *text) ||
         (white_cnt++) > MAX_JS_WHITE)) {
       res->js_type = 1;
       return 0;
diff --git a/crawler.c b/crawler.c
index 83f0ce0..693c53d 100644
--- a/crawler.c
+++ b/crawler.c
@@ -651,7 +651,8 @@ static u8 inject_check1_callback(struct http_request* req,
 
   if (orig_state == PSTATE_CHILD_INJECT) {
 
-    if (!same_page(&MRES(0)->sig, &RPRES(req)->sig) &&
+    if (MRES(0)->code < 300 &&
+        !same_page(&MRES(0)->sig, &RPRES(req)->sig) &&
         !same_page(&MRES(0)->sig, &MRES(1)->sig)) {
       problem(PROB_DIR_LIST, MREQ(0), MRES(0),
         (u8*)"unique response for /./", 
@@ -663,7 +664,8 @@ static u8 inject_check1_callback(struct http_request* req,
       RESP_CHECKS(RPREQ(req), MRES(0));
     }
 
-    if (!same_page(&MRES(2)->sig, &RPRES(req)->sig) &&
+    if (MRES(2)->code < 300 &&
+        !same_page(&MRES(2)->sig, &RPRES(req)->sig) &&
         !same_page(&MRES(2)->sig, &MRES(3)->sig)) {
       problem(PROB_DIR_LIST, MREQ(2), MRES(2), 
         (u8*)"unique response for \\.\\",