Place shrimp in a medium bowl and sprinkle with cornstarch and salt. Toss the shrimp and let stand for 10 minutes.
Meanwhile prepare the sauce. Stir the soy sauce, ketchup, honey, and chili garlic sauce together in a small bowl.
Heat a wok over high heat. Add the oil and swirl to coat the sides of the wok. add shrimp and stir-fry until pink, about 2 minutes. Add the onion, garlic and chiles and cook about 30 seconds. Add the sauce and cook, stirring, until heated through, about 30 seconds. Serve.