diff --git a/src/main/java/run/halo/app/controller/content/ContentFeedController.java b/src/main/java/run/halo/app/controller/content/ContentFeedController.java
index 3fdcebb85..33aafb054 100644
--- a/src/main/java/run/halo/app/controller/content/ContentFeedController.java
+++ b/src/main/java/run/halo/app/controller/content/ContentFeedController.java
@@ -3,6 +3,7 @@ package run.halo.app.controller.content;
 import freemarker.template.Template;
 import freemarker.template.TemplateException;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.RegExUtils;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
@@ -43,6 +44,8 @@ public class ContentFeedController {
 
     private final static String UTF_8_SUFFIX = ";charset=UTF-8";
 
+    private final static String XML_INVAID_CHAR = "[\\x00-\\x1F\\x7F]";
+
     private final static String XML_MEDIA_TYPE = MediaType.APPLICATION_XML_VALUE + UTF_8_SUFFIX;
 
     private final PostService postService;
@@ -206,6 +209,10 @@ public class ContentFeedController {
 
         Page<Post> postPage = postService.pageBy(PostStatus.PUBLISHED, pageable);
         Page<PostDetailVO> posts = postService.convertToDetailVo(postPage);
+        posts.getContent().forEach(postDetailVO -> {
+            postDetailVO.setFormatContent(RegExUtils.replaceAll(postDetailVO.getFormatContent(), XML_INVAID_CHAR, ""));
+            postDetailVO.setSummary(RegExUtils.replaceAll(postDetailVO.getSummary(), XML_INVAID_CHAR, ""));
+        });
         return posts.getContent();
     }
 
@@ -222,6 +229,10 @@ public class ContentFeedController {
 
         Page<Post> postPage = postCategoryService.pagePostBy(category.getId(), PostStatus.PUBLISHED, pageable);
         Page<PostDetailVO> posts = postService.convertToDetailVo(postPage);
+        posts.getContent().forEach(postDetailVO -> {
+            postDetailVO.setFormatContent(RegExUtils.replaceAll(postDetailVO.getFormatContent(), XML_INVAID_CHAR, ""));
+            postDetailVO.setSummary(RegExUtils.replaceAll(postDetailVO.getSummary(), XML_INVAID_CHAR, ""));
+        });
         return posts.getContent();
     }
 }
diff --git a/src/main/resources/application-dev.yaml b/src/main/resources/application-dev.yaml
index be6e2e3c9..275bbe160 100755
--- a/src/main/resources/application-dev.yaml
+++ b/src/main/resources/application-dev.yaml
@@ -64,4 +64,4 @@ halo:
   auth-enabled: true
   mode: development
   workDir: ${user.home}/halo-dev/
-  cache: level
\ No newline at end of file
+  cache: memory
\ No newline at end of file
diff --git a/src/main/resources/templates/common/web/atom.ftl b/src/main/resources/templates/common/web/atom.ftl
index 089d68861..45d47e316 100644
--- a/src/main/resources/templates/common/web/atom.ftl
+++ b/src/main/resources/templates/common/web/atom.ftl
@@ -41,14 +41,12 @@
                     <name>${user.nickname!}</name>
                     <uri>${blog_url!}</uri>
                 </author>
-                <content type="html" xml:base="${blog_url!}" xml:lang="en">
-                    <![CDATA[
-                        <#if (options.rss_content_type!'full') == 'full'>
-                            ${post.formatContent!}
-                        <#else>
-                            ${post.summary!}
-                        </#if>
-                    ]]>
+                <content type="html">
+                    <#if (options.rss_content_type!'full') == 'full'>
+                        <![CDATA[${post.formatContent!}]]>
+                    <#else>
+                        <![CDATA[${post.summary!}]]>
+                    </#if>
                 </content>
             </entry>
         </#list>
diff --git a/src/main/resources/templates/common/web/rss.ftl b/src/main/resources/templates/common/web/rss.ftl
index b75d189c3..ed2580312 100644
--- a/src/main/resources/templates/common/web/rss.ftl
+++ b/src/main/resources/templates/common/web/rss.ftl
@@ -26,19 +26,15 @@
             <#list posts as post>
                 <item>
                     <title>
-                        <![CDATA[
-                            ${post.title!}
-                        ]]>
+                        <![CDATA[${post.title!}]]>
                     </title>
                     <link>${post.fullPath!}</link>
                     <description>
-                        <![CDATA[
-                            <#if (options.rss_content_type!'full') == 'full'>
-                                ${post.formatContent!}
-                            <#else>
-                                ${post.summary!}
-                            </#if>
-                        ]]>
+                        <#if (options.rss_content_type!'full') == 'full'>
+                            <![CDATA[${post.formatContent!}]]>
+                        <#else>
+                            <![CDATA[${post.summary!}]]>
+                        </#if>
                     </description>
                     <pubDate>${post.createTime?iso_local}</pubDate>
                 </item>