diff --git a/index.bs b/index.bs
index 5f967006..74918963 100644
--- a/index.bs
+++ b/index.bs
@@ -7124,6 +7124,9 @@ To <dfn export>run WebDriver BiDi preload scripts</dfn> given |environment setti
        |navigable|. Otherwise let |realm| be |environment settings|'
        [=realm execution context=]'s Realm component.
 
+    1. Let |exception reporting global| be be |environment settings|'
+       [=realm execution context=]'s Realm component's [=realm/global object=].
+
     1. Let |arguments| be |preload script|'s <code>arguments</code>.
 
     1. Let |deserialized arguments| be an empty list.
@@ -7141,13 +7144,13 @@ To <dfn export>run WebDriver BiDi preload scripts</dfn> given |environment setti
 
     1. Let |function declaration| be |preload script|'s <code>function declaration</code>.
 
-    1. Let (|script|, |function body evaluation status|) be the result of
+    1. Let (<var ignore>script</var>, |function body evaluation status|) be the result of
        [=evaluate function body=] with |function declaration|,
        |environment settings|, |base URL|, and |options|.
 
     1. If |function body evaluation status| is an [=abrupt completion=], then
-       [=report the exception=] given by |function body evaluation status|.\[[Value]]
-       for |script|.
+       [=report an exception=] given by |function body evaluation status|.\[[Value]]
+       for |exception reporting global|.
 
     1. Let |function object| be |function body evaluation status|.\[[Value]].
 
@@ -7155,7 +7158,7 @@ To <dfn export>run WebDriver BiDi preload scripts</dfn> given |environment setti
 
        1. Let |error| be a new <a data-link-type="exception">TypeError</a> object in |realm|.
 
-       1. [=Report the exception=] |error|.
+       1. [=Report an exception=] |error| for |exception reporting global|.
 
     1. [=Prepare to run script=] with |environment settings|.
 
@@ -7165,7 +7168,8 @@ To <dfn export>run WebDriver BiDi preload scripts</dfn> given |environment setti
     1. [=Clean up after running script=] with |environment settings|.
 
     1. If |evaluation status| is an [=abrupt completion=], then
-       [=report the exception=] given by |evaluation status|.\[[Value]] for |script|.
+       [=report an exception=] given by |evaluation status|.\[[Value]] for
+       |exception reporting global|.
 
 </div>