1 files changed, 7 insertions, 3 deletions
diff --git a/src/ClientUtils.ts b/src/ClientUtils.ts
index e1f490c1a..8eb1a39ec 100644
--- a/src/ClientUtils.ts
+++ b/src/ClientUtils.ts
@@ -194,7 +194,7 @@ export namespace ClientUtils {
     }
 
     export function CorsProxy(url: string): string {
-        return prepend('/corsProxy/') + encodeURIComponent(url);
+        return prepend('/corsproxy/') + encodeURIComponent(url);
     }
 
     export function CopyText(text: string) {
@@ -476,7 +476,10 @@ export function smoothScrollHorizontal(duration: number, element: HTMLElement |
 export function addStyleSheet() {
     const style = document.createElement('style');
     const sheets = document.head.appendChild(style);
-    return sheets.sheet;
+    return sheets;
+}
+export function removeStyleSheet(sheet?: HTMLStyleElement) {
+    sheet && document.head.removeChild(sheet);
 }
 export function addStyleSheetRule(sheet: CSSStyleSheet | null, selector: string, css: string | { [key: string]: string }, selectorPrefix = '.') {
     const propText =
@@ -667,7 +670,8 @@ export function setupMoveUpEvents(
 }
 
 export function DivHeight(ele: HTMLElement | null): number {
-    return ele ? Number(getComputedStyle(ele).height.replace('px', '')) : 0;
+    const hgt = ele ? Number(getComputedStyle(ele).height.replace('px', '')) : 0;
+    return Number.isNaN(hgt) ? 0 : hgt;
 }
 export function DivWidth(ele: HTMLElement | null): number {
     return ele ? Number(getComputedStyle(ele).width.replace('px', '')) : 0;