[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Accessibility](./puppeteer.protocol.accessibility.md) > [AXValueSource](./puppeteer.protocol.accessibility.axvaluesource.md) > [invalid](./puppeteer.protocol.accessibility.axvaluesource.invalid.md) ## Protocol.Accessibility.AXValueSource.invalid property Whether the value for this property is invalid. Signature: ```typescript invalid?: boolean; ```