$Restrict to the client side

src/vmod_zipflow.c

@@ -224,7 +224,7 @@ vmod_set_level(VRT_CTX, VCL_INT level)
 	}
 	AZ(ctx->method & VCL_MET_TASK_H);
 
-	AN(ctx->method & (VCL_MET_TASK_C | VCL_MET_TASK_B));
+	AN(ctx->method & VCL_MET_TASK_C);
 	zfr = get_zipflow_request(ctx);
 	if (zfr == NULL)
 		return;

src/vmod_zipflow.vcc

@@ -39,6 +39,8 @@ Example
 
 $Function VOID subreq(STRING url)
 
+$Restrict client
+
 Issue a sub requets to *url* when the VDP runs, similar to ESI
 processing.
 
@@ -49,17 +51,21 @@ how zipflow handles the body.
 
 $Function BOOL is_subreq()
 
+$Restrict client
+
 True if the current request is a zipflow sub request.
 
 $Function VOID bundle(BOOL)
 
+$Restrict client
+
 By default, any content handled by zipflow, be it in the parent or sub
 reuqest, is bundled in the resulting ZIP file. This function can be
 used to diable or re-enable bundling of the request's body.
 
 $Function VOID set_level(INT level)
 
-$Restrict vcl_init client backend
+$Restrict vcl_init client
 
 Set the (default) compression level for the zipflow filter.