[x3d-public] [consortium] Cross Origin Access, CORS support for X3DOM editor

Thu May 11 01:38:40 PDT 2023

Building on this great work:

Links to X3DOM editor are now available for each of the 2000 scenes in
archives served by web3d.org server.

*	https://www.web3d.org/x3d/content/examples/Basic
*	https://www.web3d.org/x3d/content/examples/ConformanceNist
*	https://www.web3d.org/x3d/content/examples/HumanoidAnimation
*	https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook

Spot-check examples:

*	X3D Example Archives: Basic, Chemical Markup Language, Caffeine
*	Autogenerated version of Caffeine.x3d scene produced from
Caffeine.xml Chemical Markup Language (CML) version 1.0 source file.
*
https://www.web3d.org/x3d/content/examples/Basic/ChemicalMarkupLanguage/Caff
eineIndex.html then X3DOM (
<https://andreasplesch.github.io/Library/Viewer/index.html?url=https://www.w
eb3d.org/x3d/content/examples/Basic/ChemicalMarkupLanguage/Caffeine.x3d>
editor)
*
https://andreasplesch.github.io/Library/Viewer/index.html?url=https://www.we
b3d.org/x3d/content/examples/Basic/ChemicalMarkupLanguage/Caffeine.x3d

*	X3D Example Archives: Humanoid Animation, Characters, Jin LOA 3
*	Articulated 3D game character designed with a general graphics tool,
then converted into an X3D HAnim model.
*
https://www.web3d.org/x3d/content/examples/HumanoidAnimation/Characters/JinL
OA3Index.html 
*
https://andreasplesch.github.io/Library/Viewer/index.html?url=https://www.we
b3d.org/x3d/content/examples/HumanoidAnimation/Characters/JinLOA3.x3d

*	X3D Example Archives: VRML 2 Sourcebook, Siggraph 98 Course, Robots
*	Robot generator prototype to create multiple new nodes.
*
https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/
RobotsIndex.html
*
https://andreasplesch.github.io/Library/Viewer/index.html?url=https://www.we
b3d.org/x3d/content/examples/Vrml2Sourcebook/Siggraph98Course/Robots.x3d
*	user warning: all those high-intensity eyes following me around
makes me nervous. 8)

Problem: ConformanceNist examples do not appear to be getting handled
properly.  Example:

*
https://andreasplesch.github.io/Library/Viewer/index.html?url=https://www.we
b3d.org/x3d/content/examples/ConformanceNist/Appearance/material.x3d
*
web3d.org/x3d/content/examples/ConformanceNist/Appearance/material.x3d' from
origin 'https://andreasplesch.github.io' has been blocked by CORS policy: No
'Access-Control-Allow-Origin' header is present on the requested resource.
If an opaque response serves your needs, set the request's mode to 'no-cors'
to fetch the resource with CORS disabled.

Leonard, when you are satisfied that everything is set up OK for web3d.org
CORS, I hope that you can configure x3dgraphics.com CORS similarly.

all the best, Don

-- 

Don Brutzman  Naval Postgraduate School, Code USW/Br        brutzman at nps.edu

Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA    +1.831.656.2149

X3D graphics, virtual worlds, navy robotics https://faculty.nps.edu/brutzman

From: Brutzman, Donald (Don) (CIV) <brutzman at nps.edu> 
Sent: Sunday, May 7, 2023 9:14 PM
To: Web3D WebServices <webmaster at web3d.org>; x3d-public at web3d.org;
Consortium <consortium at web3d.org>
Cc: Brutzman, Donald (Don) (CIV) <brutzman at nps.edu>
Subject: RE: [consortium] Cross Origin Access, CORS support for X3DOM editor

Wow very powerful results, thanks Leonard for excellent work.

There are quite a few CORS references online as follows, additional
suggestions are welcome.

*	X3D Scene Authoring Hints: CORS
*
https://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#CORS

Also thanks Andreas for making this capability available.  Again wow.

Looking forward to continued experimentation and progress.

all the best, Don

-- 

Don Brutzman  Naval Postgraduate School, Code USW/Br        brutzman at nps.edu
<mailto:brutzman at nps.edu> 

Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA    +1.831.656.2149

X3D graphics, virtual worlds, navy robotics https://faculty.nps.edu/brutzman

From: consortium <consortium-bounces at web3d.org
<mailto:consortium-bounces at web3d.org> > On Behalf Of Web3D WebServices
Sent: Sunday, May 7, 2023 8:45 PM
To: x3d-public at web3d.org <mailto:x3d-public at web3d.org> ; Consortium
<consortium at web3d.org <mailto:consortium at web3d.org> >
Subject: [consortium] Cross Origin Access

The entirety of the https://www.web3d.org/x3d/content directory tree has
been made cross-origin accessible. Existing restricting apply on the actual
request. That means that a request by a browser running a web page from a
host different from https://www.web3d.org/ can request access to any file in
https://www.web3d.org/x3d/content/*. The browser should grant Cross Origin
access (aka CORS) to that request. The Web3D server will separately
determine if the request will be granted.

For example, various X3D worlds in
https://www.web3d.org/x3d/content/examples/Basic can be displayed in
Andreas' X3DOM viewer at
https://andreasplesch.github.io/Library/Viewer/index.html, specifically
https://andreasplesch.github.io/Library/Viewer/index.html?url=https://www.we
b3d.org/x3d/content/examples/HelloWorld.x3d does display this example.

The access controls are a little looser than I would like. I plan on
tightening them up over the next week for all files not in
https://www.web3d.org/x3d/content/examples/. If files not in that path need
CORS support OR files in that path should not have CORS support, then please
let me know right away.

-- 
Leonard Daly
WebServices, Web3D Consortium
President, Daly Realism - Creating the Future

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