Cannot read property 'getTime' of undefined #99
Description
使用 static-cache 作为静态文件托管，使用过程中，概率出现以下报错
2021-12-30 10:14:09,663 ERROR 247 [-/-/172.16.224.25/64407ebb16408304496621596d00f7/2ms GET /public/common/bi.jpeg] ### onerror handle { TypeError: Cannot read property 'getTime' of undefined
at /xxxxl/node_modules/_koa-static-cache@5.1.4@koa-static-cache/index.js:86:48 status: 500 }
2021-12-30 10:15:17,903 ERROR 256 [-/-/172.16.224.25/64407ebb16408305179021481d0100/1ms GET /public/common/bi.jpeg] nodejs.TypeError: Cannot read property 'getTime' of undefined
at /xxxx/node_modules/_koa-static-cache@5.1.4@koa-static-cache/index.js:86:48