[Mac] Problem with resolving fully quailfied host names in URL

Photoshop
,
1

Hi,

we found that there is problem to connect from our UXP plugin on MacOS to a remote server if a fully qualified name is used in a URL.
The only way is currently the pure host name “host” instead of “host.my-domain.com”
This limits the user to have the server inside his own network.
For remote server I found a workaround by adding the IP address and a single hostname into /private/etc/hosts.

Under Windows the UXP plugin can handle urls with and without domain names, as expected.

But under Mac I see only:

index.js:2705 TypeError: Network request failed
     at z.o.onerror (uxp://uxp-internal/netjs_scripts.js:2)
     at z.m (uxp://uxp-internal/domjs_scripts.js:2)
     at uxp://uxp-internal/domjs_scripts.js:2
     at Object.runWithNativeHandler (<anonymous>)
     at L (uxp://uxp-internal/domjs_scripts.js:2)
     at uxp://uxp-internal/domjs_scripts.js:2
     at D (uxp://uxp-internal/domjs_scripts.js:2)
     at P (uxp://uxp-internal/domjs_scripts.js:2)
     at i (uxp://uxp-internal/netjs_scripts.js:2)

when using fetch().

Any clues for that?
Is the character ‘.’ on macOS coded differently? Or must it extra escaped?

2

Hello,

the problem still exists with Photoshop 2024 and Photoshop 2025

It is reproducible some lines of code in uxp playground:

	try {
		const response = await fetch("https://www.adobe.com");
		if (!response.ok) {
			throw new Error(`fetch status is not OK`);
		}
	} catch (error) {
		console.log(error);
	}

This works fine (response.ok is true) either on PC and on Mac.

But using an http protocol like fetch(“http://www.adobe.com”) on Mac results in an exception:

main.js:30 TypeError: Network request failed
at z.o.onerror (uxp://uxp-internal/netjs_scripts.js:2)
at z.m (uxp://uxp-internal/domjs_scripts.js:2)
at uxp://uxp-internal/domjs_scripts.js:2
at L (uxp://uxp-internal/domjs_scripts.js:2)
at uxp://uxp-internal/domjs_scripts.js:2
at D (uxp://uxp-internal/domjs_scripts.js:2)
at P (uxp://uxp-internal/domjs_scripts.js:2)
at i (uxp://uxp-internal/netjs_scripts.js:2)

in contrast using a pure hostname, without domain name in address fetch(“http://my-local-vm”) works fine again, but is not a solution for our customers.

What’s wrong in Mac UXP?

3
  • While using http domains, keep in mind that Photoshop only allows http protocol on Win32 but not on macOS. InDesign has no such restrictions.
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