diff --git a/plugin/business/pangu-http/src/pangu_http.cpp b/plugin/business/pangu-http/src/pangu_http.cpp
index e71e962..b77f37e 100644
--- a/plugin/business/pangu-http/src/pangu_http.cpp
+++ b/plugin/business/pangu-http/src/pangu_http.cpp
@@ -1412,7 +1412,8 @@ void http_replace(const struct tfe_stream * stream, const struct tfe_http_sessio
 		rewrite_sz = 0;
 
 		if (tfe_http_in_response(events) && in_resp_spec->content_type != NULL
-			&& strstr(in_resp_spec->content_type, "charset=utf-8"))
+			&& (strstr(in_resp_spec->content_type, "charset=utf-8") ||
+			   (strstr(in_resp_spec->content_type, "charset=UTF-8"))))
 		{
 			options = 1;
 		}
@@ -2313,6 +2314,36 @@ void pangu_on_http_begin(const struct tfe_stream * stream,
 	return;
 }
 
+static inline int ctx_actually_replaced(struct pangu_http_ctx * ctx)
+{
+
+	if(ctx->action == PG_ACTION_MANIPULATE &&
+	   ctx->param->action == MA_ACTION_REPLACE &&
+	   ctx->n_enforce==1 && ctx->rep_ctx->actually_replaced==0)
+	{
+		return 1;
+	}
+	else
+	{
+		return 0;
+	}
+}
+
+static inline int ctx_actually_inserted(struct pangu_http_ctx * ctx)
+{
+
+	if(ctx->action == PG_ACTION_MANIPULATE &&
+	   ctx->param->action == MA_ACTION_INSERT &&
+	   ctx->n_enforce==1 && ctx->ins_ctx->actually_replaced==0)
+	{
+		return 1;
+	}
+	else
+	{
+		return 0;
+	}
+}
+
 void pangu_on_http_end(const struct tfe_stream * stream,
 	const struct tfe_http_session * session, unsigned int thread_id, void ** pme)
 {
@@ -2342,10 +2373,11 @@ void pangu_on_http_end(const struct tfe_stream * stream,
 	}
 	struct pangu_log log_msg =  {.stream=stream, .http=session, .result=ctx->enforce_rules, .result_num=ctx->n_enforce,
 								.req_body= ctx->log_req_body, .resp_body=ctx->log_resp_body};
-	if (ctx->action != PG_ACTION_NONE&&
-		!(ctx->action == PG_ACTION_MANIPULATE &&
-		  ctx->param->action == MA_ACTION_REPLACE &&
-		  ctx->n_enforce==1 && ctx->rep_ctx->actually_replaced==0))
+
+	if ((ctx->action != PG_ACTION_NONE&&
+		!(ctx_actually_replaced(ctx))) ||
+		(ctx->action != PG_ACTION_NONE&&
+		!(ctx_actually_inserted(ctx))))
 	{
 		ret=pangu_send_log(g_pangu_rt->send_logger, &log_msg);
 		ATOMIC_ADD(&(g_pangu_rt->stat_val[STAT_LOG_NUM]), ret);
diff --git a/plugin/business/pangu-http/src/pattern_replace.cpp b/plugin/business/pangu-http/src/pattern_replace.cpp
index ea910c5..9e54bae 100644
--- a/plugin/business/pangu-http/src/pattern_replace.cpp
+++ b/plugin/business/pangu-http/src/pattern_replace.cpp
@@ -202,7 +202,7 @@ size_t replace_string(const char * in, size_t in_sz, const struct replace_rule *
 
     pcre2_code *re = pcre2_compile(pattern, strlen(zone->find), pcre2_options, &error, &erroffset, 0);
     if (!re)
-        return -1;
+        return 0;
 
     pcre2_jit_compile(re, PCRE2_JIT_COMPLETE);