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Should image urls <img src=""> have http or https?
I've been searching around for a best practice on image urls <img src=""> and havn't been able to find too much. A member voiced concern over an image in our email not being secure (http). Are there any issues with using https in the <img src="">?
The only aricle on this subject I found was here. It mentions that Outlook 2007, 2010 and 2013 have issues displaying https.
This is interesting. Everything online is moving towards https. and when it's not, you'll get warnings that the page is insecure. Another issue is sometimes mixed content (when you have both https and http requests on same page), but I'm not sure how that works w/ email clients. But there is legit concern about anything that's not https. I'm going to dig around.
Using http or https is depended on the server. If the site is secure, the server detects it and we can see https://, otherwise it shows http://. Users can use either of the two in <img src="">.
Actually, it totally depends on the server and we can not control it manually. You can check several sites as an example.