diff --git a/404.html b/404.html
index 5fc74072..c5abc912 100644
--- a/404.html
+++ b/404.html
@@ -19,7 +19,7 @@
                 <h2>可选操作</h2>
 				<div class="child">
 					<a href="https://Tools.pj568.eu.org/">回到主页</a>
-					<a onclick="javascript:history.go(-1);">尝试返回</a>
+					<a onclick="javascript:history.back(-1);">尝试返回</a>
 				</div>
             		</div>
         	</div>
diff --git a/568tools b/568tools
index a1169884..a73011ee 160000
--- a/568tools
+++ b/568tools
@@ -1 +1 @@
-Subproject commit a1169884aada52b67a7991311d3f00c1f2621bb1
+Subproject commit a73011eefbf840f5bf5fdf43c49a76551ea11bf8
diff --git a/README.md b/README.md
index 7ea84ffe..d8464a3e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# <img height="30" style="margin: -3px 5px;" src="./img/icon.svg" />568Tools 在线工具箱
+# <img height="30" style="margin: -3px 5px;" src="https://Tools.PJ568.eu.org/img/icon.svg" />568Tools 在线工具箱
 
 简体中文|[English](./README_EN.md)
 
@@ -19,6 +19,7 @@
 - [ ] 构建`关于`页面，能够查询所有项目的许可证和信息。
 - [X] ~~构建`留言反馈`页面，做到无后端。~~
 - [ ] 构建`提交页面`页面。
+- [ ] 添加右键菜单。
 - [ ] ……
 
 ## 贡献者们
diff --git a/README_EN.md b/README_EN.md
index 62a669c1..506b33a5 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -1,4 +1,4 @@
-# <img height="30" style="margin: -3px 5px;" src="./img/icon.svg" />568Tools Online Toolbox
+# <img height="30" style="margin: -3px 5px;" src="https://Tools.PJ568.eu.org/img/icon.svg" />568Tools Online Toolbox
 
 [简体中文](./README.md)|English
 
@@ -19,6 +19,7 @@ Features include: file Converter, encryption & decryption, webmaster tools, code
 - [ ] Build`about`page, make it be able to query license and info for all projects.
 - [X] ~~Build`comment`page, make it without back end.~~
 - [ ] Build`application`page.
+- [ ] Add ContextMenu.
 - [ ] ...
 
 ## Contributors
diff --git a/header.html b/header.html
index f47cc50b..ead19c1a 100644
--- a/header.html
+++ b/header.html
@@ -5,7 +5,7 @@
         <div id="nav" class="menu_child">
             <a href="https://Tools.pj568.eu.org/">回到主页</a>
             <a href="#">回到页顶</a>
-            <a onclick="javascript:history.go(-1);">尝试返回</a>
+            <a onclick="javascript:history.back(-1);">尝试返回</a>
         </div>
     </div>
     <p class="menu_item_href">|</p>