Has been blocked by CORS policy: Permission was denied for this request to access the `unknown` address space - chrome 142

[Costas]

The error

Access to XMLHttpRequest at 'http://localhost/index.php' from origin 'https://www.vet365.gr' has been blocked by CORS policy: Permission was denied for this request to access the `unknown` address space.

due Chrome 138 - New permission prompt for Local Network Access

From Chrome 138, you can opt-in to these new restrictions by going to chrome://flags/#local-network-access-check and setting the flag to "Enabled (Blocking)". By Chrome 142 and beyond the option is not available. ref

visiting

chrome://settings/content/localNetworkAccess

we see the vet365.gr on blocked section by default

​

we have to whitelist vest365.gr, and become

with this registry fix :

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\LocalNetworkAccessAllowedForUrls]
"1"="https://www.vet365.gr"
"2"="https://vet365.gr"

ref
https://stackoverflow.com/a/79818948

reference ChromeEnterpriseMyA$$ :

• LocalNetworkAccessAllowedForUrls
• LocalNetworkAccessBlockedForUrls
• LocalNetworkAccessRestrictionsTemporaryOptOut
• LocalNetworkAccessRestrictionsEnabled

same applied for EDGE

• LocalNetworkAccessAllowedForUrls
• LocalNetworkAccessBlockedForUrls