example.com

@a expression {http.error.status_code} == 400
abort @a

@b expression {http.error.status_code} == "401"
abort @b

@c expression {http.error.status_code} == `402`
abort @c

@d expression "{http.error.status_code} == 403"
abort @d

@e expression `{http.error.status_code} == 404`
abort @e
----------
{
	"apps": {
		"http": {
			"servers": {
				"srv0": {
					"listen": [
						":443"
					],
					"routes": [
						{
							"match": [
								{
									"host": [
										"example.com"
									]
								}
							],
							"handle": [
								{
									"handler": "subroute",
									"routes": [
										{
											"handle": [
												{
													"abort": true,
													"handler": "static_response"
												}
											],
											"match": [
												{
													"expression": "{http.error.status_code} == 400"
												}
											]
										},
										{
											"handle": [
												{
													"abort": true,
													"handler": "static_response"
												}
											],
											"match": [
												{
													"expression": "{http.error.status_code} == \"401\""
												}
											]
										},
										{
											"handle": [
												{
													"abort": true,
													"handler": "static_response"
												}
											],
											"match": [
												{
													"expression": "{http.error.status_code} == `402`"
												}
											]
										},
										{
											"handle": [
												{
													"abort": true,
													"handler": "static_response"
												}
											],
											"match": [
												{
													"expression": {
														"expr": "{http.error.status_code} == 403",
														"name": "d"
													}
												}
											]
										},
										{
											"handle": [
												{
													"abort": true,
													"handler": "static_response"
												}
											],
											"match": [
												{
													"expression": {
														"expr": "{http.error.status_code} == 404",
														"name": "e"
													}
												}
											]
										}
									]
								}
							],
							"terminal": true
						}
					]
				}
			}
		}
	}
}