When I make a URL request, the response headers doesn't contain an Etag value. How can I get an Etag? I'm trying to set up to do Conditional Get Requests so that I can determine when there is new updates to a webpage.
Thanks! Sandy
When I make a URL request, the response headers doesn't contain an Etag value. How can I get an Etag? I'm trying to set up to do Conditional Get Requests so that I can determine when there is new updates to a webpage.
Thanks! Sandy