diff --git a/test/Manifest.toml b/test/Manifest.toml
new file mode 100644
index 000000000..be85849dd
--- /dev/null
+++ b/test/Manifest.toml
@@ -0,0 +1,38 @@
+# This file is machine-generated - editing it directly is not advised
+
+julia_version = "1.9.2"
+manifest_format = "2.0"
+project_hash = "c63a7657042c5ce7aeccc07817619d83f316d1ed"
+
+[[deps.Base64]]
+uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
+
+[[deps.InteractiveUtils]]
+deps = ["Markdown"]
+uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
+
+[[deps.Logging]]
+uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
+
+[[deps.Markdown]]
+deps = ["Base64"]
+uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"
+
+[[deps.NetworkOptions]]
+uuid = "ca575930-c2e3-43a9-ace4-1e988b2c1908"
+version = "1.2.0"
+
+[[deps.Random]]
+deps = ["SHA", "Serialization"]
+uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+
+[[deps.SHA]]
+uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"
+version = "0.7.0"
+
+[[deps.Serialization]]
+uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"
+
+[[deps.Test]]
+deps = ["InteractiveUtils", "Logging", "Random", "Serialization"]
+uuid = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/test/client.jl b/test/client.jl
index f886db705..115df223e 100644
--- a/test/client.jl
+++ b/test/client.jl
@@ -21,6 +21,15 @@ for x in (10, 12)
     @test HTTP.Connections.OPENSSL_POOL[].max == x
 end
 
+@testset "sslconfig without explicit socket_type_tls #1104" begin
+    # this was supported before 8f35185
+    @test isok(HTTP.get("https://$httpbin/ip", sslconfig=MbedTLS.SSLConfig(false)))
+    # The OpenSSL package doesn't have enough docs, but this is a valid way to initialise an SSLContext.
+    @test isok(HTTP.get("https://$httpbin/ip", sslconfig=OpenSSL.SSLContext(OpenSSL.TLSClientMethod())))
+    # Incompatible socket_type_tls and sslconfig should throw an error.
+    @test_throws ArgumentError HTTP.get("https://$httpbin/ip", sslconfig=MbedTLS.SSLConfig(false), socket_type_tls=OpenSSL.SSLStream)
+end
+
 @testset "@client macro" begin
     @eval module MyClient
         using HTTP