diff --git a/src/dom/util.js b/src/dom/util.js
index 63e968f..8c5912a 100644
--- a/src/dom/util.js
+++ b/src/dom/util.js
@@ -82,6 +82,12 @@ export function inViewY(el) {
 // name --my-var
 export function cssVar(name, el = null) {
 	if (!el)
-		el = document.body;
+		el = document.documentElement;
 	return getComputedStyle(el).getPropertyValue(name);
+}
+
+export function fontSize(name, el = null) {
+	if (!el)
+		el = document.documentElement;
+	return parseFloat(getComputedStyle(el).fontSize);
 }
\ No newline at end of file
diff --git a/src/graphql/error.js b/src/graphql/error.js
index 7d92f26..c223730 100644
--- a/src/graphql/error.js
+++ b/src/graphql/error.js
@@ -17,9 +17,7 @@ export default class GraphQlError {
 
 		if (typeof errors === 'string')
 			errors = [{ message: errors }];
-		if (Array.isArray(errors))
-			errors = errors;
-		else
+		else if (!Array.isArray(errors))
 			errors = [errors];
 
 		this.errors = errors;