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PAC file not working with Firefox

Hi Experts,

I have a PAC file that works perfectly with IE9 and Chrome, however doesn't work with Firefox.

The issue appears to be related to the following code:

if (isInNet(myIpAddress(), "192.168.1.0", "255.255.255.0"))
return "PROXY proxy1:8080";

If I remove this section, and simply use:

return "PROXY proxy1:8080";

it works fine across all three browsers but I lose the functionality of detecting the client's subnet.

It could be a bug in Firefox looking at some Google results.

Can anyone suggest a workaround or alternative method for detecting the subnet? We have three locations with different subnets and different proxies, and roaming users between these sites, so I want the client to use the appropriate proxy at each location.
Web BrowsersJavaScriptWindows Networking

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yelbaglf

8/22/2022 - Mon
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yelbaglf

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