Chrome doesn't work as well as Firefox when talking to station

[philip]

If I use Chrome (I'm on version 90), then I get these errors (I'm running FW 9.2 RED)

Code:

script.js?9.2:1 A parser-blocking, cross site (i.e. different eTLD+1) script, http://www.lightningmaps.org/control/?js&station=1182&fw=9.2&ext, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.
(anonymous) @ script.js?9.2:1
script.js?9.2:1 A parser-blocking, cross site (i.e. different eTLD+1) script, http://www.lightningmaps.org/control/?js&station=1182&fw=9.2&ext, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.
(anonymous) @ script.js?9.2:1
?js&station=1182&fw=9.2&ext:22 Uncaught ReferenceError: $ is not defined
    at ?js&station=1182&fw=9.2&ext:22
index.cgi?action=signals:20 Uncaught ReferenceError: $ is not defined
    at index.cgi?action=signals:20

It looks as though jquery doesn't get loaded early enough. $ does end up being defined. I've tried clearing the cache etc, but it doesn't seem to help.

FIrefox (87) works as expected.