Summary
setDeep() in extensions/browser/src/browser/chrome.profile-decoration.ts:49 accesses keys[keys.length - 1] which is keys[-1] (undefined) when keys is empty. The ?? "" fallback creates a property with empty-string key on the target object.
Reproduction
Source inspection: setDeep(obj, [], value) would assign obj[""] = value.
Expected
Add early if (keys.length === 0) return; guard.
Scope
extensions/browser/src/browser/chrome.profile-decoration.ts:40-49 — 1 file, ~1 LoC.
Summary
setDeep()inextensions/browser/src/browser/chrome.profile-decoration.ts:49accesseskeys[keys.length - 1]which iskeys[-1](undefined) whenkeysis empty. The?? ""fallback creates a property with empty-string key on the target object.Reproduction
Source inspection:
setDeep(obj, [], value)would assignobj[""] = value.Expected
Add early
if (keys.length === 0) return;guard.Scope
extensions/browser/src/browser/chrome.profile-decoration.ts:40-49— 1 file, ~1 LoC.