问题 Inspecting a given URL in the LinkedIn post inspector returns the following ingestion feedback: Error We encountered a server error while trying to inspect the URL. The URL redirect trail shows: 1 0 undefined https://example.com I inspected URLs of both the production domain (https) and a staging sub-domain (http) on the same server (with identical html, needless to say). The LinkedIn scraper is able to fetch all metadata from the http sub-domain but not the https domain which leads me to