Fix bugs

Author: mjbvz

src/vs/base/browser/domSanitize.ts

@@ -278,12 +278,12 @@ function replaceWithPlainTextHook(element: Element, data: dompurify.SanitizeElem
 }
 
 export function convertTagToPlaintext(element: Element): DocumentFragment {
-	const tagName = element.tagName.toLowerCase();
 	let startTagText: string;
 	let endTagText: string | undefined;
 	if (element.nodeType === Node.COMMENT_NODE) {
 		startTagText = `<!--${element.textContent}-->`;
 	} else {
+		const tagName = element.tagName.toLowerCase();
 		const isSelfClosing = selfClosingTags.includes(tagName);
 		const attrString = element.attributes.length ?
 			' ' + Array.from(element.attributes)

src/vs/base/browser/markdownRenderer.ts

@@ -213,15 +213,15 @@ export function renderMarkdown(markdown: IMarkdownString, options: MarkdownRende
 	}
 
 	// Remove/disable inputs
-	for (const e of element.getElementsByTagName('input')) {
-		if (e.attributes.getNamedItem('type')?.value === 'checkbox') {
-			e.setAttribute('disabled', '');
+	for (const input of element.getElementsByTagName('input')) {
+		if (input.attributes.getNamedItem('type')?.value === 'checkbox') {
+			input.setAttribute('disabled', '');
 		} else {
 			if (options.sanitizerConfig?.replaceWithPlaintext) {
-				const replacement = convertTagToPlaintext(element);
-				element.parentElement?.replaceChild(replacement, element);
+				const replacement = convertTagToPlaintext(input);
+				input.parentElement?.replaceChild(replacement, input);
 			} else {
-				e.remove();
+				input.remove();
 			}
 		}
 	}
@@ -464,6 +464,7 @@ export const allowedMarkdownHtmlAttributes = [
 	'type',
 	'width',
 	'start',
+	'value',
 
 	// Custom markdown attributes
 	'data-code',