diff --git a/ports/cef/string_list.rs b/ports/cef/string_list.rs
index 8f2fec1d0c7..9c9994d4c16 100644
--- a/ports/cef/string_list.rs
+++ b/ports/cef/string_list.rs
@@ -8,6 +8,11 @@ use std::mem;
 use string::{cef_string_userfree_utf8_alloc,cef_string_userfree_utf8_free,cef_string_utf8_set};
 use types::{cef_string_list_t,cef_string_t};
 
+
+fn string_map_to_vec(lt: *mut cef_string_list_t) -> *mut Vec<*mut cef_string_t> {
+    lt as *mut Vec<*mut cef_string_t>
+}
+
 //cef_string_list
 
 #[no_mangle]
@@ -19,11 +24,11 @@ pub extern "C" fn cef_string_list_alloc() -> *mut cef_string_list_t {
 }
 
 #[no_mangle]
-pub extern "C" fn cef_string_list_size(lt: *const cef_string_list_t) -> c_int {
+pub extern "C" fn cef_string_list_size(lt: *mut cef_string_list_t) -> c_int {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return 0; }
-        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
-        v.len() as c_int
+        let v = string_map_to_vec(lt);
+        (*v).len() as c_int
     }
 }
 
@@ -31,10 +36,10 @@ pub extern "C" fn cef_string_list_size(lt: *const cef_string_list_t) -> c_int {
 pub extern "C" fn cef_string_list_append(lt: *mut cef_string_list_t, value: *const cef_string_t) {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return; }
-        let mut v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
+        let v = string_map_to_vec(lt);
         let cs = cef_string_userfree_utf8_alloc();
         cef_string_utf8_set(mem::transmute((*value).str), (*value).length, cs, 1);
-        v.push(cs);
+        (*v).push(cs);
     }
 }
 
@@ -42,9 +47,9 @@ pub extern "C" fn cef_string_list_append(lt: *mut cef_string_list_t, value: *con
 pub extern "C" fn cef_string_list_value(lt: *mut cef_string_list_t, index: c_int, value: *mut cef_string_t) -> c_int {
     unsafe {
         if index < 0 || fptr_is_null(mem::transmute(lt)) { return 0; }
-        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
-        if index as uint > v.len() - 1 { return 0; }
-        let cs = v.get(index as uint);
+        let v = string_map_to_vec(lt);
+        if index as uint > (*v).len() - 1 { return 0; }
+        let cs = (*v).get(index as uint);
         cef_string_utf8_set(mem::transmute((**cs).str), (**cs).length, value, 1)
     }
 }
@@ -53,11 +58,11 @@ pub extern "C" fn cef_string_list_value(lt: *mut cef_string_list_t, index: c_int
 pub extern "C" fn cef_string_list_clear(lt: *mut cef_string_list_t) {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return; }
-        let mut v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
-        if v.len() == 0 { return; }
+        let v = string_map_to_vec(lt);
+        if (*v).len() == 0 { return; }
         let mut cs;
-        while v.len() != 0 {
-            cs = v.pop();
+        while (*v).len() != 0 {
+            cs = (*v).pop();
             cef_string_userfree_utf8_free(cs.unwrap());
         }
     }
@@ -67,7 +72,7 @@ pub extern "C" fn cef_string_list_clear(lt: *mut cef_string_list_t) {
 pub extern "C" fn cef_string_list_free(lt: *mut cef_string_list_t) {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return; }
-        let mut v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
+        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
         cef_string_list_clear(lt);
         drop(v);
     }
@@ -77,9 +82,9 @@ pub extern "C" fn cef_string_list_free(lt: *mut cef_string_list_t) {
 pub extern "C" fn cef_string_list_copy(lt: *mut cef_string_list_t) -> *mut cef_string_list_t {
     unsafe {
         if fptr_is_null(mem::transmute(lt)) { return 0 as *mut cef_string_list_t; }
-        let v: Box<Vec<*mut cef_string_t>> = mem::transmute(lt);
+        let v = string_map_to_vec(lt);
         let lt2 = cef_string_list_alloc();
-        for cs in v.iter() {
+        for cs in (*v).iter() {
             cef_string_list_append(lt2, mem::transmute((*cs)));
         }
         lt2