diff --git a/libmproxy/protocol/http.py b/libmproxy/protocol/http.py
index 3560f0bdb..1472f2cac 100644
--- a/libmproxy/protocol/http.py
+++ b/libmproxy/protocol/http.py
@@ -251,7 +251,7 @@ class HTTPRequest(HTTPMessage):
              - authority-form (CONNECT example.com:443)
              Details: http://tools.ietf.org/html/draft-ietf-httpbis-p1-messaging-25#section-5.3
 
-        form_out: The request form which mitmproxy has send out to the
+        form_out: The request form which mitmproxy will send out to the
         destination
 
         timestamp_start: Timestamp indicating when request transmission started
@@ -401,9 +401,8 @@ class HTTPRequest(HTTPMessage):
         form = form or self.form_out
 
         if form == "relative":
-            path = self.path if self.method != "OPTIONS" else "*"
             request_line = '%s %s HTTP/%s.%s' % (
-                self.method, path, self.httpversion[0], self.httpversion[1]
+                self.method, self.path, self.httpversion[0], self.httpversion[1]
             )
         elif form == "authority":
             request_line = '%s %s:%s HTTP/%s.%s' % (
diff --git a/libmproxy/proxy/config.py b/libmproxy/proxy/config.py
index fe2b45f4e..a228192a4 100644
--- a/libmproxy/proxy/config.py
+++ b/libmproxy/proxy/config.py
@@ -43,9 +43,9 @@ class ProxyConfig:
         self.body_size_limit = body_size_limit
 
         if mode == "transparent":
-            self.mode = TransparentProxyMode(platform.resolver(), TRANSPARENT_SSL_PORTS)
+            self.mode = TransparentProxyMode(platform.resolver(), ssl_ports)
         elif mode == "socks5":
-            self.mode = Socks5ProxyMode(TRANSPARENT_SSL_PORTS)
+            self.mode = Socks5ProxyMode(ssl_ports)
         elif mode == "reverse":
             self.mode = ReverseProxyMode(upstream_server)
         elif mode == "upstream":
diff --git a/test/test_protocol_http.py b/test/test_protocol_http.py
index ea6cf3fd7..db2629508 100644
--- a/test/test_protocol_http.py
+++ b/test/test_protocol_http.py
@@ -23,7 +23,7 @@ def test_stripped_chunked_encoding_no_content():
 
 
 class TestHTTPRequest:
-    def test_asterisk_form(self):
+    def test_asterisk_form_in(self):
         s = StringIO("OPTIONS * HTTP/1.1")
         f = tutils.tflow(req=None)
         f.request = HTTPRequest.from_stream(s)
@@ -33,7 +33,7 @@ class TestHTTPRequest:
         f.request.scheme = "http"
         assert f.request.assemble() == "OPTIONS * HTTP/1.1\r\nHost: address:22\r\n\r\n"
 
-    def test_origin_form(self):
+    def test_relative_form_in(self):
         s = StringIO("GET /foo\xff HTTP/1.1")
         tutils.raises("Bad HTTP request line", HTTPRequest.from_stream, s)
         s = StringIO("GET /foo HTTP/1.1\r\nConnection: Upgrade\r\nUpgrade: h2c")
@@ -52,8 +52,7 @@ class TestHTTPRequest:
         r.update_host_header()
         assert "Host" in r.headers
 
-
-    def test_authority_form(self):
+    def test_authority_form_in(self):
         s = StringIO("CONNECT oops-no-port.com HTTP/1.1")
         tutils.raises("Bad HTTP request line", HTTPRequest.from_stream, s)
         s = StringIO("CONNECT address:22 HTTP/1.1")
@@ -62,13 +61,37 @@ class TestHTTPRequest:
         assert r.assemble() == "CONNECT address:22 HTTP/1.1\r\nHost: address:22\r\n\r\n"
         assert r.pretty_url(False) == "address:22"
 
-    def test_absolute_form(self):
+    def test_absolute_form_in(self):
         s = StringIO("GET oops-no-protocol.com HTTP/1.1")
         tutils.raises("Bad HTTP request line", HTTPRequest.from_stream, s)
         s = StringIO("GET http://address:22/ HTTP/1.1")
         r = HTTPRequest.from_stream(s)
         assert r.assemble() == "GET http://address:22/ HTTP/1.1\r\nHost: address:22\r\n\r\n"
 
+    def test_http_options_relative_form_in(self):
+        """
+        Exercises fix for Issue #392.
+        """
+        s = StringIO("OPTIONS /secret/resource HTTP/1.1")
+        r = HTTPRequest.from_stream(s)
+        r.host = 'address'
+        r.port = 80
+        r.scheme = "http"
+        assert r.assemble() == ("OPTIONS "
+                                "/secret/resource "
+                                "HTTP/1.1\r\nHost: address\r\n\r\n")
+
+    def test_http_options_absolute_form_in(self):
+        s = StringIO("OPTIONS http://address/secret/resource HTTP/1.1")
+        r = HTTPRequest.from_stream(s)
+        r.host = 'address'
+        r.port = 80
+        r.scheme = "http"
+        assert r.assemble() == ("OPTIONS "
+                                "http://address:80/secret/resource "
+                                "HTTP/1.1\r\nHost: address\r\n\r\n")
+
+
     def test_assemble_unknown_form(self):
         r = tutils.treq()
         tutils.raises("Invalid request form", r.assemble, "antiauthority")
@@ -133,4 +156,4 @@ class TestInvalidRequests(tservers.HTTPProxTest):
         p.connect()
         r = p.request("get:/p/200")
         assert r.status_code == 400
-        assert "Invalid HTTP request form" in r.content
\ No newline at end of file
+        assert "Invalid HTTP request form" in r.content