From cf27e7eeb4241de42a19a7c14d722f12e48239cb Mon Sep 17 00:00:00 2001
From: David Rice <davidlukerice@gmail.com>
Date: Wed, 13 May 2015 14:53:59 -0500
Subject: [PATCH 1/3] Add optional importUrl to Shapefile signature

---
 leaflet.shpfile.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/leaflet.shpfile.js b/leaflet.shpfile.js
index 5c2c4b3..f7f3921 100644
--- a/leaflet.shpfile.js
+++ b/leaflet.shpfile.js
@@ -1,8 +1,11 @@
 L.Shapefile =L.GeoJSON.extend({
-    initialize: function (file, options) {
+    initialize: function (file, options, importUrl) {
         if(typeof cw !== 'undefined'){
+            if (typeof importUrl === 'undefined') {
+            	importUrl = 'shp.js';
+            }
             this.worker = cw(function(data,cb){
-                importScripts('shp.js');
+                importScripts(importUrl);
 	            shp(data).then(cb);
             });
         }
@@ -33,6 +36,6 @@ L.Shapefile =L.GeoJSON.extend({
     }
 });
 
-L.shapefile= function(a,b){
-    return new L.Shapefile(a,b);
+L.shapefile= function(a,b,c){
+    return new L.Shapefile(a,b,c);
 }

From 7589c1523a5be376f1f4d74a80d9f250f8e0dc33 Mon Sep 17 00:00:00 2001
From: David Rice <davidlukerice@gmail.com>
Date: Wed, 13 May 2015 15:41:38 -0500
Subject: [PATCH 2/3] guard against empty string passed as the importUrl

---
 leaflet.shpfile.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/leaflet.shpfile.js b/leaflet.shpfile.js
index f7f3921..e12d03e 100644
--- a/leaflet.shpfile.js
+++ b/leaflet.shpfile.js
@@ -1,11 +1,8 @@
 L.Shapefile =L.GeoJSON.extend({
     initialize: function (file, options, importUrl) {
         if(typeof cw !== 'undefined'){
-            if (typeof importUrl === 'undefined') {
-            	importUrl = 'shp.js';
-            }
             this.worker = cw(function(data,cb){
-                importScripts(importUrl);
+                importScripts(importUrl || 'shp.js');
 	            shp(data).then(cb);
             });
         }

From 344bba487eb8d9833575460fcab7e2a9a408b53d Mon Sep 17 00:00:00 2001
From: David Rice <davidlukerice@gmail.com>
Date: Wed, 13 May 2015 15:56:12 -0500
Subject: [PATCH 3/3] Updated docs to include new importUrl parameter

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 9558b97..14dbbb3 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,12 @@ to be done in a worker, you'll need [catiline](https://github.com/calvinmetcalf/
 usage:
 
 ```javascript
-new L.Shapefile(arrayBuffer or url[,options]);
+new L.Shapefile(arrayBuffer or url[,options][,importUrl]);
 
-L.shapefile(arrayBuffer or url[,options]);
+L.shapefile(arrayBuffer or url[,options][,importUrl]);
 ```
 
 Options are passed to L.Geojson as is. First argument is either an array buffer of a zipped shapefile,
-the url to a zipped shapefile, or the url to file.shp (this assumes file.dbf exists).
+the url to a zipped shapefile, or the url to file.shp (this assumes file.dbf exists). The importUrl parameter allows you to change where a worker loads in `shp.js` when using [catiline](https://github.com/calvinmetcalf/catiline) and defaults to `shp.js`.
 
 To easily try this out using your own shapefile, see the demo at [leaflet.calvinmetcalf.com](http://leaflet.calvinmetcalf.com/), where you can drag-and-drop your own shapefile and have it displayed on the map.