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-rw-r--r--util/promise.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/util/promise.lua b/util/promise.lua
index 6ebb0dd6..bcb7beda 100644
--- a/util/promise.lua
+++ b/util/promise.lua
@@ -81,7 +81,7 @@ local function new(f)
local p = setmetatable({ _state = "pending", _next = next_pending, _pending_on_fulfilled = {}, _pending_on_rejected = {} }, promise_mt);
if f then
local resolve, reject = new_resolve_functions(p);
- local ok, ret = pcall(f, resolve, reject);
+ local ok, ret = xpcall(f, debug.traceback, resolve, reject);
if not ok and p._state == "pending" then
reject(ret);
end