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-rw-r--r--test/ufuzz/index.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/test/ufuzz/index.js b/test/ufuzz/index.js
index 717252d3..3e2d865d 100644
--- a/test/ufuzz/index.js
+++ b/test/ufuzz/index.js
@@ -1348,7 +1348,7 @@ for (var round = 1; round <= num_iterations; round++) {
ok = sandbox.same_stdout(sandbox.run_code(sort_globals(original_code)), sandbox.run_code(sort_globals(uglify_code)));
}
// ignore numerical imprecision caused by `unsafe_math`
- if (!ok && typeof uglify_result == "string" && o.compress && o.compress.unsafe_math) {
+ if (!ok && o.compress && o.compress.unsafe_math && typeof original_result == "string" && typeof uglify_result == "string") {
ok = fuzzy_match(original_result, uglify_result);
if (!ok) {
var fuzzy_result = sandbox.run_code(original_code.replace(/( - 0\.1){3}/g, " - 0.3"), toplevel);