Why you are getting this error
Quentin's answer explains this pretty well. I would clarify that you are getting a mixed content error.
How to fix this error
Although Quentin's answer offers the most ideal fix, it is sometimes more convenient to solve mixed content errors using a protocol-relative URL, where the http[s]?:
prefix is removed from the URL. For example, change this:
http://connect.odnoklassniki.ru/dk?st.cmd=extOneClickLike&uid=odklocs0&
ref=https%3A%2F%2Fmult-privet.com%2F
to this:
//connect.odnoklassniki.ru/dk?st.cmd=extOneClickLike&uid=odklocs0&
ref=https%3A%2F%2Fmult-privet.com%2F
by removing the http:
prefix. It will let the browser determine the protocol. When using the protocol relative URL in the above example, if you are on an SSL encrypted page the browser will access the https://connect.odnoklassniki
... URL, and on a non-SSL page, it will access the http://connect.odnoklassniki
... URL, assuming that both protocols work for the URL.
There are, however, some pitfalls in using protocol-relative URLs, like ensuring that the server behind the URL is capable of serving both http
and https
protocols. This SO post addresses more reasons to use protocol-relative URLs.