diff --git a/src/vs/editor/browser/controller/editContext/textArea/textAreaEditContext.ts b/src/vs/editor/browser/controller/editContext/textArea/textAreaEditContext.ts
index 1afbfb12b855a8..6d1ab16559b75f 100644
--- a/src/vs/editor/browser/controller/editContext/textArea/textAreaEditContext.ts
+++ b/src/vs/editor/browser/controller/editContext/textArea/textAreaEditContext.ts
@@ -207,8 +207,8 @@ export class TextAreaEditContext extends AbstractEditContext {
 		const textAreaInputHost: ITextAreaInputHost = {
 			context: this._context,
 			getScreenReaderContent: (): TextAreaState => {
-				if (this._accessibilitySupport === AccessibilitySupport.Disabled) {
-					// We know for a fact that a screen reader is not attached
+				if (this._accessibilitySupport === AccessibilitySupport.Disabled || (this._accessibilitySupport === AccessibilitySupport.Unknown && !browser.isAndroid)) {
+					// No screen reader is known to be attached; a page here gives WebKit an overflow to scroll during IME composition (monaco-editor#4796)
 					// On OSX, we write the character before the cursor to allow for "long-press" composition
 					// Also on OSX, we write the word before the cursor to allow for the Accessibility Keyboard to give good hints
 					const selection = this._selections[0];
@@ -559,13 +559,13 @@ export class TextAreaEditContext extends AbstractEditContext {
 			this._accessibilityPageSize = accessibilityPageSize;
 		}
 
-		// When wrapping is enabled and a screen reader might be attached,
+		// When wrapping is enabled and a screen reader is attached,
 		// we will size the textarea to match the width used for wrapping points computation (see `domLineBreaksComputer.ts`).
 		// This is because screen readers will read the text in the textarea and we'd like that the
 		// wrapping points in the textarea match the wrapping points in the editor.
 		const layoutInfo = options.get(EditorOption.layoutInfo);
 		const wrappingColumn = layoutInfo.wrappingColumn;
-		if (wrappingColumn !== -1 && this._accessibilitySupport !== AccessibilitySupport.Disabled) {
+		if (wrappingColumn !== -1 && this._accessibilitySupport === AccessibilitySupport.Enabled) {
 			const fontInfo = options.get(EditorOption.fontInfo);
 			this._textAreaWrapping = true;
 			this._textAreaWidth = Math.round(wrappingColumn * fontInfo.typicalHalfwidthCharacterWidth);
@@ -748,9 +748,6 @@ export class TextAreaEditContext extends AbstractEditContext {
 					(textareaSpansSingleToken ? viewLineData.tokens.getPresentation(startTokenIndex) : null)
 				);
 
-				this.textArea.domNode.scrollTop = lineCount * lineHeight;
-				this.textArea.domNode.scrollLeft = scrollLeft;
-
 				this._doRender({
 					lastRenderPosition: null,
 					top: top,
@@ -765,6 +762,9 @@ export class TextAreaEditContext extends AbstractEditContext {
 					strikethrough: presentation.strikethrough,
 					fontSize
 				});
+				// After `_doRender`, as the branch below does: the offsets are clamped against the size it just set
+				this.textArea.domNode.scrollTop = lineCount * lineHeight;
+				this.textArea.domNode.scrollLeft = scrollLeft;
 			}
 			return;
 		}