diff --git a/pywb/rewrite/regex_rewriters.py b/pywb/rewrite/regex_rewriters.py
index c9694267..cfc00cbe 100644
--- a/pywb/rewrite/regex_rewriters.py
+++ b/pywb/rewrite/regex_rewriters.py
@@ -136,11 +136,16 @@ class JSLocationRewriterMixin(object):
             (r'(?<=document\.)cookie', RegexRewriter.add_prefix(prefix), 0),
 
             #todo: move to mixin?
-            (r'(?:[\s=(){]|^)(top)\s*(?:[!}()]|==|$)',
+            (r'(?<=[\s=(){])(parent|top)\s*(?:[!}()]|==|$)',
              RegexRewriter.add_prefix(prefix), 1),
 
-            (r'(?<=window\.)top',
-             RegexRewriter.add_prefix(prefix), 0),
+            (r'^(parent|top)\s*(?:[!}()]|==|$)',
+             RegexRewriter.add_prefix(prefix), 1),
+
+            (r'(?<=window\.)(parent|top)',
+             RegexRewriter.add_prefix(prefix), 1),
+
+
 
             #             (r'\b(top)\b[!=\W]+(?:self|window)',
             #              RegexRewriter.add_prefix(prefix), 1),
diff --git a/pywb/rewrite/test/test_regex_rewriters.py b/pywb/rewrite/test/test_regex_rewriters.py
index fc5784c0..301cfe34 100644
--- a/pywb/rewrite/test/test_regex_rewriters.py
+++ b/pywb/rewrite/test/test_regex_rewriters.py
@@ -49,6 +49,9 @@ r"""
 >>> _test_js('window.top != window')
 'window.WB_wombat_top != window'
 
+>>> _test_js('if(parent!=top)')
+'if(WB_wombat_parent!=WB_wombat_top)'
+
 >>> _test_js('top != window')
 'WB_wombat_top != window'
 
diff --git a/pywb/static/wombat.js b/pywb/static/wombat.js
index 16336567..a185d9f9 100644
--- a/pywb/static/wombat.js
+++ b/pywb/static/wombat.js
@@ -940,12 +940,20 @@ _WBWombat = (function() {
 
                 window.WB_wombat_top = find_next_top(window.self);
 
+                if (window.parent == window.top) {
+                    window.WB_wombat_parent = window;
+                } else {
+                    window.WB_wombat_parent = window.parent;
+                }
+
             } else {
                 window.top.WB_wombat_location = new WombatLocation(window.top.location);
                 window.WB_wombat_top = window.top;
+                window.WB_wombat_parent = window.parent;
             }
         } else {
             window.WB_wombat_top = window.top;
+            window.WB_wombat_parent = window.parent;
         }
 
         //if (window.opener) {