diff --git a/CHANGELOG.md b/CHANGELOG.md
index b30e94b75..1a0540268 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@
 
 ## v1.14.0
 
+**v1.14.0.7** *(2018-02-09)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.14.0.7/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.14.0.7/builds/4chan-X-noupdate.crx)]
+- Merge v1.13.15.9: Fix 404 redirection on error pages without doctype. #1811
+
 **v1.14.0.6** *(2018-02-04)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.14.0.6/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.14.0.6/builds/4chan-X-noupdate.crx)]
 - Fix bug from v1.14.0.0 that broke 404 redirect and other features on image URLs. #1789
 
diff --git a/builds/4chan-X-beta.crx b/builds/4chan-X-beta.crx
index 89525e47a..d2f6c5219 100644
Binary files a/builds/4chan-X-beta.crx and b/builds/4chan-X-beta.crx differ
diff --git a/builds/4chan-X-beta.meta.js b/builds/4chan-X-beta.meta.js
index 6bc1ab502..4c3771186 100644
--- a/builds/4chan-X-beta.meta.js
+++ b/builds/4chan-X-beta.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.14.0.6
+// @version      1.14.0.7
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X-beta.user.js b/builds/4chan-X-beta.user.js
index f49a90668..fbd3382d4 100644
--- a/builds/4chan-X-beta.user.js
+++ b/builds/4chan-X-beta.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.14.0.6
+// @version      1.14.0.7
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -157,7 +157,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.14.0.6',
+  VERSION:   '1.14.0.7',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -7323,7 +7323,7 @@ SW = {};
     },
     isThisPageLegit: function() {
       var ref;
-      return location.hostname === 'boards.4chan.org' && !$('link[href*="favicon-status.ico"]', d.head) && ((ref = d.title) !== '4chan - Temporarily Offline' && ref !== '4chan - Error' && ref !== '504 Gateway Time-out');
+      return location.hostname === 'boards.4chan.org' && d.doctype && !$('link[href*="favicon-status.ico"]', d.head) && ((ref = d.title) !== '4chan - Temporarily Offline' && ref !== '4chan - Error' && ref !== '504 Gateway Time-out' && ref !== 'MathJax Equation Source');
     },
     is404: function() {
       var ref;
@@ -24469,9 +24469,6 @@ Main = (function() {
           return;
         }
       } catch (_error) {}
-      if (location.hostname === 'boards.4chan.org' && d.documentElement && !d.doctype) {
-        return;
-      }
       if (doc && $.hasClass(doc, 'fourchan-x')) {
         return;
       }
diff --git a/builds/4chan-X-noupdate.crx b/builds/4chan-X-noupdate.crx
index b91b5fa99..0d0c06322 100644
Binary files a/builds/4chan-X-noupdate.crx and b/builds/4chan-X-noupdate.crx differ
diff --git a/builds/4chan-X-noupdate.user.js b/builds/4chan-X-noupdate.user.js
index 7593515c9..70ee14c2a 100644
--- a/builds/4chan-X-noupdate.user.js
+++ b/builds/4chan-X-noupdate.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.14.0.6
+// @version      1.14.0.7
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -157,7 +157,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.14.0.6',
+  VERSION:   '1.14.0.7',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -7323,7 +7323,7 @@ SW = {};
     },
     isThisPageLegit: function() {
       var ref;
-      return location.hostname === 'boards.4chan.org' && !$('link[href*="favicon-status.ico"]', d.head) && ((ref = d.title) !== '4chan - Temporarily Offline' && ref !== '4chan - Error' && ref !== '504 Gateway Time-out');
+      return location.hostname === 'boards.4chan.org' && d.doctype && !$('link[href*="favicon-status.ico"]', d.head) && ((ref = d.title) !== '4chan - Temporarily Offline' && ref !== '4chan - Error' && ref !== '504 Gateway Time-out' && ref !== 'MathJax Equation Source');
     },
     is404: function() {
       var ref;
@@ -24469,9 +24469,6 @@ Main = (function() {
           return;
         }
       } catch (_error) {}
-      if (location.hostname === 'boards.4chan.org' && d.documentElement && !d.doctype) {
-        return;
-      }
       if (doc && $.hasClass(doc, 'fourchan-x')) {
         return;
       }
diff --git a/builds/4chan-X.crx b/builds/4chan-X.crx
index 72859561c..1a4ab568e 100644
Binary files a/builds/4chan-X.crx and b/builds/4chan-X.crx differ
diff --git a/builds/4chan-X.meta.js b/builds/4chan-X.meta.js
index 4e0d7a4a6..e8ee4976f 100644
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.14.0.6
+// @version      1.14.0.7
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index d592b5341..4b3872f13 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.14.0.6
+// @version      1.14.0.7
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -157,7 +157,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.14.0.6',
+  VERSION:   '1.14.0.7',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -7323,7 +7323,7 @@ SW = {};
     },
     isThisPageLegit: function() {
       var ref;
-      return location.hostname === 'boards.4chan.org' && !$('link[href*="favicon-status.ico"]', d.head) && ((ref = d.title) !== '4chan - Temporarily Offline' && ref !== '4chan - Error' && ref !== '504 Gateway Time-out');
+      return location.hostname === 'boards.4chan.org' && d.doctype && !$('link[href*="favicon-status.ico"]', d.head) && ((ref = d.title) !== '4chan - Temporarily Offline' && ref !== '4chan - Error' && ref !== '504 Gateway Time-out' && ref !== 'MathJax Equation Source');
     },
     is404: function() {
       var ref;
@@ -24469,9 +24469,6 @@ Main = (function() {
           return;
         }
       } catch (_error) {}
-      if (location.hostname === 'boards.4chan.org' && d.documentElement && !d.doctype) {
-        return;
-      }
       if (doc && $.hasClass(doc, 'fourchan-x')) {
         return;
       }
diff --git a/builds/4chan-X.zip b/builds/4chan-X.zip
index 53dbb7c5a..bd0d54b68 100644
Binary files a/builds/4chan-X.zip and b/builds/4chan-X.zip differ
diff --git a/builds/updates-beta.json b/builds/updates-beta.json
index 7693cdb5f..294887db5 100644
--- a/builds/updates-beta.json
+++ b/builds/updates-beta.json
@@ -3,7 +3,7 @@
     "4chan-x@4chan-x.net": {
       "updates": [
         {
-          "version": "1.14.0.6",
+          "version": "1.14.0.7",
           "update_link": "https://www.4chan-x.net/builds/4chan-X-beta.crx"
         }
       ]
diff --git a/builds/updates-beta.xml b/builds/updates-beta.xml
index e0b083f0c..f0762dbc3 100644
--- a/builds/updates-beta.xml
+++ b/builds/updates-beta.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.14.0.6' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.14.0.7' />
   </app>
 </gupdate>
 
diff --git a/builds/updates.json b/builds/updates.json
index 1d507ff4f..24d958b8b 100644
--- a/builds/updates.json
+++ b/builds/updates.json
@@ -3,7 +3,7 @@
     "4chan-x@4chan-x.net": {
       "updates": [
         {
-          "version": "1.14.0.6",
+          "version": "1.14.0.7",
           "update_link": "https://www.4chan-x.net/builds/4chan-X.crx"
         }
       ]
diff --git a/builds/updates.xml b/builds/updates.xml
index f37e36044..7eab451b4 100644
--- a/builds/updates.xml
+++ b/builds/updates.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.14.0.6' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.14.0.7' />
   </app>
 </gupdate>
 
diff --git a/version.json b/version.json
index a1e5b99fd..041302a3c 100644
--- a/version.json
+++ b/version.json
@@ -1,4 +1,4 @@
 {
-  "version": "1.14.0.6",
-  "date": "2018-02-04T04:08:30.543Z"
+  "version": "1.14.0.7",
+  "date": "2018-02-09T18:49:55.978Z"
 }
\ No newline at end of file