场景是用HEAD方式获取jpg或者pdf的文件大小
测试了mac和ios端,下面这个脚本都能在日志中看到实际有大小,但是实际返回的Content-Length为0
if ('HEAD' === $request.method) {
console.log('HEAD need get content-length');
let rheaders = $response.headers;
let cl = rheaders['Content-Length'] ? rheaders['Content-Length']: rheaders['content-length'];
console.log('HEAD -> cl='+ cl)
$done({rheaders});
#这两种方式结果一样
#$done({});
}