diff --git a/internal/nodes/http_request_cache.go b/internal/nodes/http_request_cache.go
index 8b78fae..6058b3c 100644
--- a/internal/nodes/http_request_cache.go
+++ b/internal/nodes/http_request_cache.go
@@ -348,6 +348,8 @@ func (this *HTTPRequest) doCacheRead() (shouldStop bool) {
 				return true
 			}
 		} else { // 没有Range
+			this.writer.PrepareCompression(reader.BodySize())
+
 			this.writer.WriteHeader(reader.Status())
 
 			err = reader.ReadBody(buf, func(n int) (goNext bool, err error) {