Menu icon on mobile phones stopped working

Check your browser’s developer console: some JavaScript assets are blocked for CORS policy violation.

Basically, your site https://69i.2b6.myftpupload.com is trying to load these resources from ‘https://69i2b6.n3cdn1.secureserver.net, but your server’s current CORS policy prevents that.

Thank you @gappiah for your swift reply. I am afraid it’s well beyond my level of understanding, but it sounds like I have to raise it with the company hosting my site. As I said when raising this topic, everything worked fine until a couple of days ago, and we had an update to WordPress at around the same time.

After a lot of trouble persuading the company hosting the site to investigate the possible server issues, they concluded that the problem relates to the website’s coding (the old familiar game of ping-pong). I decided to try to fudge the problem by reducing the width of my menu area in the header, and in so doing I stumbled on a setting for the Navigation block which explicitly says that on a mobile the navigation options are collapsed and an overlay displayed – precisely what WAS happening on my site, and which had stopped working after an update to WordPress. It even shows the two horizontal lines display that (when working) opens the overlay and thus displays to the user the menu options. Switching the setting to OFF now displays the menu buttons on a mobile in the same way as on a desktop – not what I had, but possibly easier for mobile users anyway.

The fact remains that this Overlay Menu is now not working when it was before, so perhaps someone can fix it. I see from https://www.ads-software.com/documentation/article/navigation-block/#block-settings that the default setting is Mobile, which is of course why I was seeing its effect without having to do anything to make it happen. I wish I had seen that page several weeks ago!