[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [CacheStorage](./puppeteer.protocol.cachestorage.md) > [RequestCacheNamesRequest](./puppeteer.protocol.cachestorage.requestcachenamesrequest.md) > [securityOrigin](./puppeteer.protocol.cachestorage.requestcachenamesrequest.securityorigin.md) ## Protocol.CacheStorage.RequestCacheNamesRequest.securityOrigin property Security origin. Signature: ```typescript securityOrigin: string; ```