add an option to prevent Isso from appending the default CSS, closes #29

README.md

@@ -132,6 +132,15 @@ You can configure the client (the JS part) via `data-` attributes:
      <script data-isso="/isso" src="/path/to/embed.min.js"></script>
      ```
 
+*   data-isso-css
+
+    Set to `false` prevents Isso from automatically appending the stylesheet.
+    Defaults to `true`.
+
+    ```html
+    <script src="..." data-isso-css="false"></script>
+    ```
+
 ### Webserver configuration
 
 *   nginx configuration to run Isso on `/isso`:

isso/js/app/api.js

@@ -6,7 +6,9 @@ define(["q"], function(Q) {
     Q.longStackSupport = true;
 
     var salt = "Eech7co8Ohloopo9Ol6baimi",
-        config = {},
+        config = {
+            "css": true
+        },
         location = window.location.pathname;
 
     var rules = {

isso/js/embed.js

@@ -8,10 +8,13 @@ require(["ready", "app/api", "app/isso", "app/count", "app/dom", "app/markup", "
     "use strict";
 
     domready(function() {
-        var style = $.new("style");
-        style.type = "text/css";
-        style.textContent = css.inline;
-        $("head").append(style);
+
+        if (api.config["css"]) {
+            var style = $.new("style");
+            style.type = "text/css";
+            style.textContent = css.inline;
+            $("head").append(style);
+        }
 
         count();