diff -up libproxy-0.4.11/libproxy/extension_pacrunner.cpp.crash libproxy-0.4.11/libproxy/extension_pacrunner.cpp

--- libproxy-0.4.11/libproxy/extension_pacrunner.cpp.crash	2010-07-29 08:14:59.000000000 -0400

+++ libproxy-0.4.11/libproxy/extension_pacrunner.cpp	2013-11-11 15:23:56.987266457 -0500

@@ -22,20 +22,10 @@ using namespace libproxy;

 pacrunner::pacrunner(string, const url&) {}

-pacrunner_extension::pacrunner_extension() {

-	this->pr = NULL;

-}

+pacrunner_extension::pacrunner_extension() {}

-pacrunner_extension::~pacrunner_extension() {

-	if (this->pr) delete this->pr;

-}

+pacrunner_extension::~pacrunner_extension() {}

 pacrunner* pacrunner_extension::get(string pac, const url& pacurl) throw (bad_alloc) {

-	if (this->pr) {

-		if (this->last == pac)

-			return this->pr;

-		delete this->pr;

-	}

-

-	return this->pr = this->create(pac, pacurl);

+	return this->create(pac, pacurl);

 }

diff -up libproxy-0.4.11/libproxy/proxy.cpp.crash libproxy-0.4.11/libproxy/proxy.cpp

--- libproxy-0.4.11/libproxy/proxy.cpp.crash	2013-11-11 15:25:27.309271353 -0500

+++ libproxy-0.4.11/libproxy/proxy.cpp	2013-11-11 15:25:31.569271584 -0500

@@ -416,7 +416,9 @@ void proxy_factory::run_pac(url &realurl

 		/* Run the PAC, but only try one PACRunner */

 		if (debug) cerr << "Using pacrunner: " << typeid(*pacrunners[0]).name() << endl;

-		string pacresp = pacrunners[0]->get(this->pac, this->pacurl->to_string())->run(realurl);

+		pacrunner* runner = pacrunners[0]->get(this->pac, this->pacurl->to_string());

+		string pacresp = runner->run(realurl);

+		delete runner;

 		if (debug) cerr << "Pacrunner returned: " << pacresp << endl;

 		format_pac_response(pacresp, response);

 	}