New source found from dndbeyond.com

ddb_main/tools/js/CharacterSheet/components/InvalidCharacter/InvalidCharacter.tsx

@@ -1,4 +1,5 @@
 import { FC } from "react";
+import { useSearchParams } from "react-router-dom";
 
 import { BuilderLinkButton } from "../../../Shared/components/common/LinkButton";
 
@@ -11,6 +12,10 @@ export const InvalidCharacter: FC<InvalidCharacterProps> = ({
   builderUrl,
   isReadonly,
 }) => {
+  const [searchParams] = useSearchParams();
+  const isVttView = searchParams.get("view") === "vtt";
+  const sendToNonVttBuilderUrl = builderUrl.replace("view=vtt", "");
+
   return (
     <div className="ct-invalid-character">
       <h2>Character Not Ready!</h2>
@@ -30,9 +35,10 @@ export const InvalidCharacter: FC<InvalidCharacterProps> = ({
 
           <p>
             <BuilderLinkButton
-              url={builderUrl}
+              url={isVttView ? sendToNonVttBuilderUrl : builderUrl}
               className="ct-invalid-character__button"
               size="oversized"
+              target={isVttView ? "_blank" : undefined}
             >
               Character Builder
             </BuilderLinkButton>