fix corner case in ie8 (#3826)

fixes #3825
2020-04-27 09:51:21 +01:00
parent bc2a4a3bb8
commit 818738beec
2 changed files with 16 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4938,7 +4938,7 @@ merge(Compressor.prototype, {
            }
            if (!compressor.option("ie8")) return node;
            if (node) exprs.push(node);
-            return make_sequence(this, exprs);
+            return exprs.length == 0 ? null : make_sequence(this, exprs);
        });
        def(AST_Constant, return_null);
        def(AST_Dot, function(compressor, first_in_statement) {