Merge pull request #436 from AndyBernie/master

修复:java.ajax(url)在某些情况下未设置默认ua

app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt

@@ -188,10 +188,10 @@ class AnalyzeUrl(
                         GSON.fromJsonObject<Map<String, String>>(headers)
                             ?.let { headerMap.putAll(it) }
                     }
+                }
                 headerMap[UA_NAME] ?: let {
                     headerMap[UA_NAME] = userAgent
                 }
-                }
                 option.charset?.let { charset = it }
                 option.body?.let {
                     body = if (it is String) it else GSON.toJson(it)