page in <webview> that accesses process global triggers initialization about positron HOT 3 OPEN

diff --git a/positron/components/Process.js b/positron/components/Process.js
index 14a5544..5d94b1d 100644
--- a/positron/components/Process.js
+++ b/positron/components/Process.js
@@ -35,16 +35,31 @@ Process.prototype = {
   /**
    * Initialize the global `process` property.  See the code comment
    * https://dxr.mozilla.org/mozilla-central/rev/21bf1af/toolkit/mozapps/extensions/amInstallTrigger.js#124-133
    * for an explanation of the behavior of this method.
    */
   init: function(window) {
     this._contentWindow = window;

+    // The binding appears to get initialized even for a document in a content
+    // docshell, even though it's marked [ChromeOnly].  Hack around that.
+    // TODO: https://github.com/mozilla/positron/issues/64
+    const docShellType = window.QueryInterface(Ci.nsIInterfaceRequestor).
+                                getInterface(Ci.nsIWebNavigation).
+                                QueryInterface(Ci.nsIDocShell).itemType;
+    if (docShellType !== Ci.nsIDocShellTreeItem.typeChrome) {
+      this._processGlobal = new Proxy({}, {
+        get: function(target, name) {
+          window.console.error("'process' not defined in hidden window");
+        }
+      });
+      return window.processImpl._create(window, this);
+    }
+
     // The WebIDL binding applies to the hidden window too, but we don't want
     // to initialize the Electron environment for that window, so return early
     // if we've been called to initialize `process` for that window.
     //
     // TODO: restrict the WebIDL binding to windows opened by the Electron app
     // using the Func extended attribute
     // <https://developer.mozilla.org/en-US/docs/Mozilla/WebIDL_bindings#Func>.
     //