Denis –
You could do this, but it is so much easier to let WordPress or httaccss do this for you – then you do not need a plugin at all.
If you set your site URL in the settings to https://yoursite.com (use your site URL), then WordPress will redirect the URLs to https when the page loads, no matter what they type (http or https).
If you want a true catch-all, look up on Google (or other search engine), “htaccess redirect http to https” and you can find out exactly how to make every URL go to https. (note for site running on nginx – there is not an htaccess file, so you have to look up how to do this for nginx).
Regards,
Don
