diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
index b9c73579cff2439499df33b85067121c15d040bd..097b6fd53ca177fd61be370dd97c49f5ae276650 100644
--- a/src/main/webapp/WEB-INF/web.xml
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -70,32 +70,6 @@
<url-pattern>/*</url-pattern>
</filter-mapping>
- <mime-mapping>
- <extension>manifest</extension>
- <mime-type>text/cache-manifest</mime-type>
- </mime-mapping>
- <mime-mapping>
- <extension>json</extension>
- <mime-type>application/json</mime-type>
- </mime-mapping>
-
- <error-page>
- <error-code>401</error-code>
- <location>/error/401.html</location>
- </error-page>
- <error-page>
- <error-code>403</error-code>
- <location>/error/403.html</location>
- </error-page>
- <error-page>
- <error-code>404</error-code>
- <location>/error/404.html</location>
- </error-page>
- <error-page>
- <error-code>500</error-code>
- <location>/error/500.html</location>
- </error-page>
-
<session-config>
<tracking-mode>COOKIE</tracking-mode>
</session-config>
diff --git a/src/main/webapp/error/401.html b/src/main/webapp/error/401.html
deleted file mode 100644
index 2be558baca7e72272fb7e7e1a2faf1e36331b5f3..0000000000000000000000000000000000000000
--- a/src/main/webapp/error/401.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
- <meta charset="UTF-8">
- <title>Not Found</title>
- <link href="error/error.css" rel="stylesheet" type="text/css" />
-</head>
-<body>
- <article>
- <h1>401 - UNAUTORIZED</h1>
- <p>
- Sorry, you must be authorized to request this resource
- </p>
- </article>
-</body>
-</html>
diff --git a/src/main/webapp/error/403.html b/src/main/webapp/error/403.html
deleted file mode 100644
index b39c7e299b7dec18407ab414794f82c27ccdf2f0..0000000000000000000000000000000000000000
--- a/src/main/webapp/error/403.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
- <meta charset="UTF-8">
- <title>Not Found</title>
- <link href="error/error.css" rel="stylesheet" type="text/css" />
-</head>
-<body>
- <article>
- <h1>403 - FORBIDDEN</h1>
- <p>
- Sorry, you are not allowed to request this resource
- </p>
- </article>
-</body>
-</html>
diff --git a/src/main/webapp/error/404.html b/src/main/webapp/error/404.html
deleted file mode 100644
index 6560f42022344c56112c64084c7ce59e8de02281..0000000000000000000000000000000000000000
--- a/src/main/webapp/error/404.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
- <meta charset="UTF-8">
- <title>Not Found</title>
- <link href="error/error.css" rel="stylesheet" type="text/css" />
-</head>
-<body>
- <article>
- <h1>404 - NOT FOUND</h1>
- <p>
- Sorry, the resource you are requesting could not be found
- </p>
- </article>
-</body>
-</html>
diff --git a/src/main/webapp/error/500.html b/src/main/webapp/error/500.html
deleted file mode 100644
index 9f510cbdae5cb0aff421524222c6d1bba1d3c6e6..0000000000000000000000000000000000000000
--- a/src/main/webapp/error/500.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
- <meta charset="UTF-8">
- <title>Not Found</title>
- <link href="error/error.css" rel="stylesheet" type="text/css" />
-</head>
-<body>
- <article>
- <h1>500 - INTERNAL SERVER ERROR</h1>
- <p>
- Sorry, this should not happen.
- </p>
- </article>
-</body>
-</html>
diff --git a/src/main/webapp/error/503.html b/src/main/webapp/error/503.html
deleted file mode 100644
index 89917502c7a64ffc00414ed459935669271f8cba..0000000000000000000000000000000000000000
--- a/src/main/webapp/error/503.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
- <meta charset="UTF-8">
- <title>Not Found</title>
- <link href="error/error.css" rel="stylesheet" type="text/css" />
-</head>
-<body>
- <article>
- <h1>503 - SERVICE UNAVAILABLE</h1>
- <p>
- Sorry, this should not happen.
- </p>
- </article>
-</body>
-</html>
diff --git a/src/main/webapp/error/error.css b/src/main/webapp/error/error.css
deleted file mode 100644
index 944083efe5aee499bf9243be1731910068d59b82..0000000000000000000000000000000000000000
--- a/src/main/webapp/error/error.css
+++ /dev/null
@@ -1,22 +0,0 @@
-@CHARSET "UTF-8";
-
-body {
- background: #eee;
-}
-
-article {
- background: white url(thm-logo.png) no-repeat 16px 98%;
- margin: 16px;
- padding: 48px 16px;
- border-radius: 4px;
- box-shadow: 0 1px 2px #ccc;
- text-align: center;
- font-weight: bold;
-}
-
-article > h1 {
- background: url(logo_128.png) no-repeat 50% top;
- padding: 140px 48px 48px 48px;
- color: #800000;
- text-shadow: 0 1px 0 white, 0 2px 1px #ccc;
-}
diff --git a/src/main/webapp/error/logo_128.png b/src/main/webapp/error/logo_128.png
deleted file mode 100644
index 4be3cdaf3e20b8103942d3b60a83a143c7cedc0f..0000000000000000000000000000000000000000
Binary files a/src/main/webapp/error/logo_128.png and /dev/null differ
diff --git a/src/main/webapp/error/thm-logo.png b/src/main/webapp/error/thm-logo.png
deleted file mode 100644
index 2d4f9eefbf5b2603119412cc1fc1105f7323560c..0000000000000000000000000000000000000000
Binary files a/src/main/webapp/error/thm-logo.png and /dev/null differ