diff --git a/app/src/main/assets/updateLog.md b/app/src/main/assets/updateLog.md
index 751f4906d..79223d416 100644
--- a/app/src/main/assets/updateLog.md
+++ b/app/src/main/assets/updateLog.md
@@ -6,6 +6,7 @@
 **2020/12/14**
 * 修复bug
 * 电池图标不允许改字体
+* 升级js库
 
 **2020/12/13**
 * 修复bug
diff --git a/app/src/main/java/io/legado/app/help/http/StrResponse.kt b/app/src/main/java/io/legado/app/help/http/StrResponse.kt
index c7ccad9a1..1b1f53395 100644
--- a/app/src/main/java/io/legado/app/help/http/StrResponse.kt
+++ b/app/src/main/java/io/legado/app/help/http/StrResponse.kt
@@ -8,17 +8,20 @@ import okhttp3.Response.Builder
  */
 @Suppress("unused", "MemberVisibilityCanBePrivate")
 class StrResponse {
-    var rawResponse: Response
+    var raw: Response
+        private set
     var body: String? = null
+        private set
     var errorBody: ResponseBody? = null
+        private set
 
     constructor(rawResponse: Response, body: String?) {
-        this.rawResponse = rawResponse
+        this.raw = rawResponse
         this.body = body
     }
 
     constructor(url: String, body: String?) {
-        rawResponse = Builder()
+        raw = Builder()
             .code(200)
             .message("OK")
             .protocol(Protocol.HTTP_1_1)
@@ -28,39 +31,43 @@ class StrResponse {
     }
 
     constructor(rawResponse: Response, errorBody: ResponseBody?) {
-        this.rawResponse = rawResponse
+        this.raw = rawResponse
         this.errorBody = errorBody
     }
 
-    fun raw() = rawResponse
+    fun raw() = raw
 
     fun url(): String {
-        rawResponse.networkResponse?.let {
+        raw.networkResponse?.let {
             return it.request.url.toString()
         }
-        return rawResponse.request.url.toString()
+        return raw.request.url.toString()
     }
 
+    val url: String get() = url()
+
+    fun body() = body
+
     fun code(): Int {
-        return rawResponse.code
+        return raw.code
     }
 
     fun message(): String {
-        return rawResponse.message
+        return raw.message
     }
 
     fun headers(): Headers {
-        return rawResponse.headers
+        return raw.headers
     }
 
-    fun isSuccessful(): Boolean = rawResponse.isSuccessful
+    fun isSuccessful(): Boolean = raw.isSuccessful
 
     fun errorBody(): ResponseBody? {
         return errorBody
     }
 
     override fun toString(): String {
-        return rawResponse.toString()
+        return raw.toString()
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/model/webBook/WebBook.kt b/app/src/main/java/io/legado/app/model/webBook/WebBook.kt
index 7b2235aab..7a1c29a05 100644
--- a/app/src/main/java/io/legado/app/model/webBook/WebBook.kt
+++ b/app/src/main/java/io/legado/app/model/webBook/WebBook.kt
@@ -52,7 +52,7 @@ class WebBook(val bookSource: BookSource) {
                 res.body,
                 bookSource,
                 analyzeUrl,
-                res.url(),
+                res.url,
                 variableBook,
                 true
             )
@@ -83,7 +83,7 @@ class WebBook(val bookSource: BookSource) {
                 res.body,
                 bookSource,
                 analyzeUrl,
-                res.url(),
+                res.url,
                 variableBook,
                 false
             )