diff --git a/chrome/content/zotero/xpcom/translation/translate.js b/chrome/content/zotero/xpcom/translation/translate.js
index 06d4791b2..634fce39f 100644
--- a/chrome/content/zotero/xpcom/translation/translate.js
+++ b/chrome/content/zotero/xpcom/translation/translate.js
@@ -1584,7 +1584,9 @@ Zotero.Translate.Web.prototype._getTranslatorsGetPotentialTranslators = function
 Zotero.Translate.Web.prototype._getSandboxLocation = function() {
 	if(this._parentTranslator) {
 		return this._parentTranslator._sandboxLocation;
-	} else if(this.document.defaultView && this.document.defaultView.toString() === "[object Window]") {
+	} else if(this.document.defaultView
+			&& (this.document.defaultView.toString().indexOf("Window") !== -1
+				|| this.document.defaultView.toString().indexOf("XrayWrapper") !== -1)) {
 		return this.document.defaultView;
 	} else {
 		return this.document.location.toString();