fix corner case in properties (#4889)

fixes #4888
2021-05-01 00:52:53 +01:00
parent df980db4a8
commit 8bbfaacdae
2 changed files with 18 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -11533,6 +11533,7 @@ merge(Compressor.prototype, {

    AST_PropAccess.DEFMETHOD("flatten_object", function(key, compressor) {
        if (!compressor.option("properties")) return;
+        if (key === "__proto__") return;
        var expr = this.expression;
        if (expr instanceof AST_Object) {
            var props = expr.properties;