• Announcements

    • khawk

      Download the Game Design and Indie Game Marketing Freebook   07/19/17

      GameDev.net and CRC Press have teamed up to bring a free ebook of content curated from top titles published by CRC Press. The freebook, Practices of Game Design & Indie Game Marketing, includes chapters from The Art of Game Design: A Book of Lenses, A Practical Guide to Indie Game Marketing, and An Architectural Approach to Level Design. The GameDev.net FreeBook is relevant to game designers, developers, and those interested in learning more about the challenges in game development. We know game development can be a tough discipline and business, so we picked several chapters from CRC Press titles that we thought would be of interest to you, the GameDev.net audience, in your journey to design, develop, and market your next game. The free ebook is available through CRC Press by clicking here. The Curated Books The Art of Game Design: A Book of Lenses, Second Edition, by Jesse Schell Presents 100+ sets of questions, or different lenses, for viewing a game’s design, encompassing diverse fields such as psychology, architecture, music, film, software engineering, theme park design, mathematics, anthropology, and more. Written by one of the world's top game designers, this book describes the deepest and most fundamental principles of game design, demonstrating how tactics used in board, card, and athletic games also work in video games. It provides practical instruction on creating world-class games that will be played again and again. View it here. A Practical Guide to Indie Game Marketing, by Joel Dreskin Marketing is an essential but too frequently overlooked or minimized component of the release plan for indie games. A Practical Guide to Indie Game Marketing provides you with the tools needed to build visibility and sell your indie games. With special focus on those developers with small budgets and limited staff and resources, this book is packed with tangible recommendations and techniques that you can put to use immediately. As a seasoned professional of the indie game arena, author Joel Dreskin gives you insight into practical, real-world experiences of marketing numerous successful games and also provides stories of the failures. View it here. An Architectural Approach to Level Design This is one of the first books to integrate architectural and spatial design theory with the field of level design. The book presents architectural techniques and theories for level designers to use in their own work. It connects architecture and level design in different ways that address the practical elements of how designers construct space and the experiential elements of how and why humans interact with this space. Throughout the text, readers learn skills for spatial layout, evoking emotion through gamespaces, and creating better levels through architectural theory. View it here. Learn more and download the ebook by clicking here. Did you know? GameDev.net and CRC Press also recently teamed up to bring GDNet+ Members up to a 20% discount on all CRC Press books. Learn more about this and other benefits here.
Sign in to follow this  
Followers 0
hpdvs2

Unity
Unity crossdomain issue

8 posts in this topic

I posted this to the Unity forums as well, but they aren't as active as here in my experience.  (If I get the answer there, I'll post it here)

 

I'm somewhat new to Unity for an engine. My game is using WWW to get some info from my site. 

I'm running into "SecurityException: No valid crossdomain policy available to allow access"

I manually went to "crossdomain.xml" and resaved as UTF-8 (ASCII subset)

crossdomain.xml is loadable from the root of my site. (localhost) http://127.0.0.1/crossdomain.xml. I can open that in a browser and it pops up. 

The contents of the file is: 
<?xml version="1.0"?>
<cross-domain-policy>
<allow-access-from domain="*"/>
</cross-domain-policy>

The file it is grabbing from the site is an xml file, in a sub folder called Users. I wasn't sure if the crossdomain.xml file needed to be in the same folder as the content, so I have a copy of it there as well. Despite that, I keep receiving the error.

I've looked at a dozen pages/sites at least on this issue, and tried all sorts of things with now luck. 

I'm running Windows 8, with IIS. The page is on the IIS. I can access all the paths from a browser without issue.

Any clue what I'm doing wrong? - Thanks

0

Share this post


Link to post
Share on other sites

Are you trying to run the unity game from the Unity IDE, or from a browser?

 

Try checking the IIS logs to see if you can see a request for the crossdomain.xml at the time you think Unity should be making the request.

0

Share this post


Link to post
Share on other sites

You probably need to allow http request headers:

[source]<allow-http-request-headers-from domain="*" headers="*"/>[/source]

0

Share this post


Link to post
Share on other sites

Try checking the IIS logs to see if you can see a request for the crossdomain.xml at the time you think Unity should be making the request.

 

I do see requests coming through.  I even cleared the log, and only used the game and tried again.  and saw some records for it.

 

So it appears it is able to get the file.  Log returns a 200 OK

2013-02-19 21:04:58 127.0.0.1 GET /crossdomain.xml - 80 - 127.0.0.1 UnityPlayer/4.0.1f2+(http://unity3d.com) - 200 0 0 1

 

 

 

 

You probably need to allow http request headers:

[source]<allow-http-request-headers-from domain="*" headers="*"/>[/source]

 

Thanks.  I tried this.  But unfortunately, I'm still getting the error.

 

SecurityException: No valid crossdomain policy available to allow access

 

I'm guessing this means there is something wrong with the crossdomain file.  either in structure or save format, but I'm not sure.  the exception doesn't give much more info.

 

P.S.  At this point, I've still had no responses on the Unity forum.  This forum rocks.

0

Share this post


Link to post
Share on other sites

I'm guessing this means there is something wrong with the crossdomain file.  either in structure or save format, but I'm not sure.  the exception doesn't give much more info.

All right, well, if that's the problem, I see three potential issues:
  • You are missing a doctype declaration.
  • You aren't setting a cross domain policy.
  • Your web server may not be setting the right content type
How about this?
 
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM
"http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
	<site-control permitted-cross-domain-policies="master-only"/>
	<allow-access-from domain="*"/>
	<allow-http-request-headers-from domain="*" headers="*"/>
</cross-domain-policy>
And make sure your webserver is sending [tt]Content-Type: text/x-cross-domain-policy[/tt]
2

Share this post


Link to post
Share on other sites

There are some security options you could double check under Edit -> Project Settings -> Editor, maybe it has something to do with those options when running from the editor. I had this same problem but it was a long time ago and I honestly cant remember what I did back there.

0

Share this post


Link to post
Share on other sites

Are you sure the exception is for your WWW class usage? For WWW, the policy file needs to be served up over HTTP, but for socket use, the policy file needs to be served over plain TCP. If you were using both WWW and sockets, you would get an error like this where the WWW security check passed but the socket check did not.

 

Another idea: you can't use 127.0.0.1 and localhost interchangeably. Make sure your policy file is reachable using the exact same host name that is being used by the WWW class. Both should use localhost or neither should.

 

Also, UTF-8 is not an ASCII subset! It's the other way around. Your file looks like plain ASCII to me but make sure there is no Byte Order Mark at the start of the file or anything like that. Switch your text editor to an ASCII encoding if possible.

0

Share this post


Link to post
Share on other sites

I'm guessing this means there is something wrong with the crossdomain file.  either in structure or save format, but I'm not sure.  the exception doesn't give much more info.

All right, well, if that's the problem, I see three potential issues:
  • You are missing a doctype declaration.
  • You aren't setting a cross domain policy.
  • Your web server may not be setting the right content type
How about this?
 
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM
"http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
	<site-control permitted-cross-domain-policies="master-only"/>
	<allow-access-from domain="*"/>
	<allow-http-request-headers-from domain="*" headers="*"/>
</cross-domain-policy>
And make sure your webserver is sending [tt]Content-Type: text/x-cross-domain-policy[/tt]

 

 

You rock!  This xml solved it.

 

this probably would have been solved earlier had I noted your first response with the header xml.  I noticed and added the attribute, but did not notice the fact it was a different node/tag.    That was probably my original problem.  

 

Thanks.

1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Similar Content

    • By Qwertyman
      My game (built on the Unity platform, making use of EZ GUI) requires players to log into Facebook. However, when the player is using a language other than English on Facebook, I'm unable to display the localized Username (which is the same as the FB Username) within the game. Any ideas on how this can be tackled?
      PS: Detecting the OS language doesn't really help here because, for all you know, the player might be using one language for the OS, but another one for their Facebook, so.... 
      TIA!
    • By NajeNDa
      Hi there,
      I am a game programmer (C#/C++) who is looking for a project to join. I am computer science engineer plus Master Degree in Game Development, currently working in one the most renown mobile games company (2 years academic experience, 1 year working experience).
      I have developed several prototypes or even games almost ready to release, but I always lack of artists, so I am looking for a project already set up or few artist to begin working in something.
      My preferences are:
      Unity or Unreal Engine 4 based project (UE4 prefered) PC/Console game prefered but mobile is acceptable Not interested in VR Serious team with almost all the roles filled or pretending to be filled 3D project prefered over Sprites Guaranteed 7 work hours per week, Crunch 20 work hours per week  European team (if timezone is not a problem for you, so it is not for me) I am not looking for any kind of money income from games neither the team, I want to do this as a hobby and a way to improve my skills.
      Cheers
    • By OPNeonGames
      SumiKen : Ink Blade Samurai is released! Download and leave a review to help support the game!
      Download here for free : https://play.google.com/store/apps/details?id=com.OPNeon.SumiKen&hl=en

      ★★★★★ - "Just get it it's the best runner!" - Icatsasha
      ★★★★★ - "Great game, wonderful art! Super addictive!" - EZk1ll 
      A casual samurai runner game with seven samurai and beautiful mountain paintings. Join Sumi and his samurai companions on this epic path to slash & dash through endless hordes of enemy lines. Beware of the enemy blades as a single blow from the sword blade will end it all. Will you be turned into faded ink? Or will you train and become a samurai legend?
       
    • By OPNeonGames
      Hey guys, posting my work in progress for Macho Cat here. 

      A very early prototype for Macho Cat. Everything is just placeholder for now
      What is Macho Cat?
      A silly little game where you scrub the macho cat with random objects found in trash and junkyard to please him
      Gameplay feature?
      -Cat scrubbin, lots of scrubbin
      -Unlock moar objects in junkyard 
      -Funny, silly and easy
      When will the game release?
      December 2017 (estimate)
      Interested to Beta test?
      opneongame@gmail.com
    • By MCKillerZ1
      UNITY ENGINE
      IN SEARCH FOR MEMBERS
       
      Hey there. I am currently looking for at least 4 members ( for now ) to join me in making games together.
      Sure, I'm still a student ( 17 years old ) but this is what I wish to achieve in the future.
       
      My goal is simple:
      :- Create my own game development team consisting of 5 members total.
      :- Work together as a team, and also learn game related things together.
      :- Successfully finish a simple game, and upload it to any source ( Google Play, Steam, Origin, etc... )
      :- Gain popularity as a team over the time.
       
      My role in the team is the producer or manager, or maybe the leader.
      I do have talent regarding to creating games. My main ability is creating 3D Models via SketchUp, and I've had experience doing it for about 2-3 years.
      I did learn a bit of programming, but I only understand the basics of it. I can't really make a functioning program.
      Currently, I'm learning the basics of making music using FL Studio 12, and I will learn basic animation, level design and character modelling in the future.
       
      Requirements To Join:
      1. Good English communicating skills.
      2. Always online whenever needed.
      3. Good internet connection/speed.
      4. Have a decent computer/laptop.
      5. At least knows the basics of game development related topics.
      6. Have a good camera and a set of headphones with mic, or just regular mic ( needed in the future ).
       
      Roles Available:
      1. Programmer - Main language is C#, but can also use Java ( I recommend C# ).
      2. Music Producer - Can create music according to the game's settings, and also create sounds.
      3. Animator - Can do decent animation of characters, vehicles and more.
      4. Graphics Designer - Able to do colour schemes, 2D sprites and more.
       
      Send me a message if interested.
       
       
  • Popular Now