iOS web request just hanging

Unity Engine
1

I need to DL some JSON, but first things first. First, I want to just verify I have a connection on the iPad. This is what I do on Windows:

    IEnumerator IsConnected(Action<bool> action)
    {       
        UnityWebRequest request = UnityWebRequest.Get("http://www.readysetvr.com");
        yield return request.SendWebRequest();

        if (request.error != null)
        {
            action(false);
        }
        else
        {
            action(true);
        }
    }

On iOS (iPad mini) this never finishes. No timeout or anything. Works fine in Editor and on a MS Surface.

2

For quite a few years now Apple has required TLS secure transport.

Try it with an https:// URL and it should work.

Otherwise there USED to be a “allow non-TLS connections” property you could set in the plist file, but I think those days are over as far as production software goes.

I know you absolutely will have your app yanked from Google (ask me how I know!) if you state “We send all our data encrypted” and any part of your app is found to fire off a non-encrypted request.

Pretty sure it does not apply to good old Application.OpenURL() calls since that just forks the device browser.

1 Like
3

Thanks much! Using https:// fixed the problem with it hanging. But now request.error returns with ‘Unknown error’. Not too helpful. Works on Windows lol.

4

It shouldn’t have been hanging, but rather throwing an exception and the rest of the code not executing.
Your URL does not look correct, it should have a slash at the end.

5

Thanks! Trying it with a slash now, but could it be something with cloud build settings? Kurt mentioned the plist file - do I need to add some post-process script in advanced settings in cloud build? Saw some reference to this for allowing ‘unsafe’ urls?

6

We have a player setting for that. If you enable unsafe HTTP in there, we add the plist item for you.

7

Where is this in player settings? I can’t seem to find it.

8

Is it just the Allow ‘unsafe’ Code check box? I can’t find anything else related to unsafe.

9

No, that is completely different thing.
The setting is called “Allow downloads over HTTP”.

10

Got a pic or something? 2021.3.2f1 and I see no such thing.

11

So, that is HTTP… I am trying https and I still get “Unknown error”. Will this make any diff for https? Also I just don’t see that item in settings.

This is the (very simple) code I am currently trying. Adding a slash at the end makes no diff. Note https as well.

IEnumerator checkConnection(Action<bool> action)
    {
        UnityWebRequest request = UnityWebRequest.Head("https://www.readysetvr.com");
        request.timeout = 5;
        yield return request.SendWebRequest();

        if (request.error != null)
        {
            action(false);
        }
        else
        {
            action(true);
        }
    }
12

Also odd - your manual page under the Configuration section. Has the Allow downloads over HTTP explained, but it does not show in the screen shot for that section:

13

Bump

14

UnsafeHttp.png - Google Drive

15

Thanks but… maybe a little more info would be nice. I mentioned a few times that it’s not there - not in 2021.3.2f1 so when did it get added or what can I do in the version I am using? Also I asked - I am using https - will this do anything then?

16

Have you actually tried the “https://www.readysetvr.com**/**” ← note the slash at the end of url?

17

Yes, I have and it makes no difference and I just did another build to confirm. Still get Unknown Error. Would the ‘Allow http’ thing even matter for this and any idea why I don’t see it?

18

I installed 2021.3.22f1 and that also has no option for ‘allow downloads over http’. Can I please got some info on this?

19

So, am on Windows. I switched my build settings to iOS… and then I see that ‘allow unsafe http’ but it was already checked… So not sure it will do anything, but I saved the project, pushed to git, and am cloud building again.

20

As I suspected, that setting also does nothing - since I am using https. Of course.