fix idom doc server location

Author: rmorshea

docs/source/_exts/interactive_widget.py

@@ -5,7 +5,7 @@
 from sphinx.application import Sphinx
 
 
-_IDOM_SERVER_LOC = os.environ.get("IDOM_DOC_EXAMPLE_SERVER_HOST", "") + "/_idom"
+_IDOM_SERVER_LOC = os.environ.get("IDOM_DOC_EXAMPLE_SERVER_HOST", "")
 
 
 class IteractiveWidget(Directive):
@@ -26,7 +26,7 @@ def run(self):
                     <div id="{container_id}" class="interactive widget-container center-content" style="" />
                     <script async type="module">
                         import loadWidgetExample from "/_static/js/load-widget-example.js";
-                        loadWidgetExample("{_IDOM_SERVER_LOC}", "{container_id}", "{view_id}");
+                        loadWidgetExample("{_IDOM_SERVER_LOC}", "/_idom", "{container_id}", "{view_id}");
                     </script>
                 </div>
                 """,

docs/source/_static/js/load-widget-example.js

@@ -1,6 +1,11 @@
-export default function loadWidgetExample(idomServerLocation, mountID, viewID) {
+export default function loadWidgetExample(
+  idomServerHost,
+  idomServerPath,
+  mountID,
+  viewID
+) {
   const loc = window.location;
-  const idom_url = "//" + (idomServerLocation || loc.host);
+  const idom_url = "//" + (idomServerHost || loc.host) + idomServerPath;
   const http_proto = loc.protocol;
   const ws_proto = http_proto === "https:" ? "wss:" : "ws:";