removed unneeded var

lib/single-file/util/doc-helper.js

@@ -73,7 +73,7 @@ this.docHelper = this.docHelper || (() => {
 		if (doc.head) {
 			doc.head.querySelectorAll("*:not(base):not(link):not(meta):not(noscript):not(script):not(style):not(template):not(title)").forEach(element => element.hidden = true);
 		}
-		let canvasData, imageData, usedFonts, shadowRootsData;
+		let canvasData, imageData, usedFonts;
 		if (win) {
 			canvasData = getCanvasData(doc, win);
 			imageData = getImageData(doc, win, options);
@@ -114,7 +114,6 @@ this.docHelper = this.docHelper || (() => {
 				}
 			}
 		}
-		shadowRootsData = getShadowRootsData(doc.body);
 		retrieveInputValues(doc);
 		return {
 			canvasData,
@@ -123,7 +122,7 @@ this.docHelper = this.docHelper || (() => {
 			imageData,
 			postersData: getPostersData(doc),
 			usedFonts,
-			shadowRootsData,
+			shadowRootsData: getShadowRootsData(doc.body),
 			referrer: doc.referrer
 		};
 	}