[x3d-public] COBWEB v1.24 Firefox OK, other browsers have cross-origin scripting errors

Wed Apr 13 01:57:34 PDT 2016

Redirected:

Am 13.04.2016 um 09:21 schrieb Don Brutzman:
> thanks for detail.  what i'm not understanding yet:
>
> - how can we make it so a file runs online or locally
> - x3dom is able to achieve that, somehow.  maybe a lesson learned.
> - opening a web browser on a system might be OK for developers but is a
> security hole, similar to plugin, and not allowable on enterprise systems
>
> can we have this dialog on the mail list? am hoping to get broader
> insight, there might be something we don't know...
>
> On 4/13/2016 12:04 AM, Holger Seelig wrote:
>> Using Google Chrome and Opera Browser with local files
>>
>> Cobweb makes use of the XMLHttpRequest object to load files and
>> there's no way round that. But that means files loading using the
>> file:// scheme protocol are subject to the same origin policy and are
>> handled as cross origin requests (CORS) and cross origin requests are
>> only supported for protocol schemes: http, data and https. That means
>> Cobweb cannot make access to this files.
>>
>> To work around this problem you must set up a localhost server, than
>> you can access your local files under the web address
>> http://localhost/... This can be done using XAMPP from the
>> https://www.apachefriends.org website. XAMPP is a completely free,
>> easy to install Apache distribution containing MariaDB, PHP, and Perl.
>> The XAMPP open source package has been set up to be incredibly easy to
>> install and to use.
>>
>>
>> Am 12.04.2016 um 19:42 schrieb Don Brutzman:
>>> [cc: community]
>>>
>>> Hi Holger.  I've updated the X3dToX3dom.xslt stylesheet and X3D-Edit to
>>> support your latest version 1.24.  Works great in Windows 7 in latest
>>> Firefox v45.0.1.
>>>
>>> Conversion result attached.  Wondering if it is correct since failures
>>> are occurring in other web browsers.
>>>
>>> Unfortunately, other browsers fail and have similar errors, apparently
>>> cross-origin scripting restrictions.
>>>
>>> Console excerpts follow.  Please advise, am thinking this is a common
>>> problem that someone on the mail list may be able to help with.
>>>
>>> ============================================
>>> Internet Explorer "Edge" gives the following console error:
>>> DOM7011: The code on this page disabled back and forward caching. For
>>> more information, see: http://go.microsoft.com/fwlink/?LinkID=291337
>>> File: HelloWorldCobweb.html
>>>
>>> ============================================
>>> Chrome console reports a similar error:
>>>
>>> Welcome to Cobweb X3D Browser 1.24:
>>>           Current Graphics Renderer
>>>                   Name: WebKit WebGL 1.0 (OpenGL ES 2.0 Chromium)
>>>                   Shading language: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES
>>> 1.0 Chromium)
>>>           Rendering Properties
>>>                   Antialiased: true
>>>                   Color depth: 32 bits
>>>                   Max clip planes: 6
>>>                   Max lights: 8
>>>                   Texture units: 16 / 32
>>>                   Max texture size: 16384 × 16384 pixel
>>>                   Max vertex uniform vectors: 1024
>>>                   Max fragment uniform vectors: 1024
>>>                   Max vertex attribs: 16
>>>
>>> cobweb.min.js:11 XMLHttpRequest cannot load
>>> file:///C:/x3d-code/www.web3d.org/x3d/content/examples/HelloWorld.x3d.
>>> Cross origin requests are only supported for protocol schemes: http,
>>> data, chrome, chrome-extension, https,
>>> chrome-extension-resource.e.dataType.binary.e.dataType.send @
>>> cobweb.min.js:11
>>> cobweb.min.js:12 Couldn't load URL 'HelloWorld.x3d':
>>> ...
>>> ============================================
>>>
>>> Opera also reports a similar error:
>>>
>>> cobweb.min.js:32 Welcome to Cobweb X3D Browser 1.24:
>>>           Current Graphics Renderer
>>>                   Name: WebKit WebGL 1.0 (OpenGL ES 2.0 Chromium)
>>>                   Shading language: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES
>>> 1.0 Chromium)
>>>           Rendering Properties
>>>                   Antialiased: true
>>>                   Color depth: 32 bits
>>>                   Max clip planes: 6
>>>                   Max lights: 8
>>>                   Texture units: 16 / 32
>>>                   Max texture size: 16384 × 16384 pixel
>>>                   Max vertex uniform vectors: 1024
>>>                   Max fragment uniform vectors: 1024
>>>                   Max vertex attribs: 16
>>>
>>> cobweb.min.js:11 XMLHttpRequest cannot load
>>> file:///C:/x3d-code/www.web3d.org/x3d/content/examples/HelloWorld.x3d.
>>> Cross origin requests are only supported for protocol schemes: http,
>>> data, chrome, chrome-extension, https,
>>> chrome-extension-resource.e.dataType.binary.e.dataType.send @
>>> cobweb.min.js:11oe.extend.ajax @
>>> cobweb.min.js:3e.extend.loadDocumentAsync @
>>> cobweb.min.js:12e.extend.loadDocument @
>>> cobweb.min.js:12e.extend.createX3DFromURL @
>>> cobweb.min.js:12e.extend.loadURL @ cobweb.min.js:32e.extend.realize @
>>> cobweb.min.js:32t.processInterests @
>>> cobweb.min.js:3e.extend.processEvent @ cobweb.min.js:4e.processEvents @
>>> cobweb.min.js:8e.extend.traverse @ cobweb.min.js:23
>>> cobweb.min.js:12 Couldn't load URL 'HelloWorld.x3d':
>>> cobweb.min.js:11 XMLHttpRequest cannot load
>>> file:///C:/x3d-code/www.web3d.org/x3d/content/examples/HelloWorld.x3d.
>>> Cross origin requests are only supported for protocol schemes: http,
>>> data, chrome, chrome-extension, https,
>>> chrome-extension-resource.e.dataType.binary.e.dataType.send @
>>> cobweb.min.js:11oe.extend.ajax @
>>> cobweb.min.js:3e.extend.loadDocumentAsync @
>>> cobweb.min.js:12e.extend.loadDocumentError @
>>> cobweb.min.js:12e.ajax.error @ cobweb.min.js:12h @
>>> cobweb.min.js:2d.fireWith @ cobweb.min.js:2i @ cobweb.min.js:3i.onerror
>>> @ cobweb.min.js:11e.dataType.binary.e.dataType.send @
>>> cobweb.min.js:11oe.extend.ajax @
>>> cobweb.min.js:3e.extend.loadDocumentAsync @
>>> cobweb.min.js:12e.extend.loadDocument @
>>> cobweb.min.js:12e.extend.createX3DFromURL @
>>> cobweb.min.js:12e.extend.loadURL @ cobweb.min.js:32e.extend.realize @
>>> cobweb.min.js:32t.processInterests @
>>> cobweb.min.js:3e.extend.processEvent @ cobweb.min.js:4e.processEvents @
>>> cobweb.min.js:8e.extend.traverse @ cobweb.min.js:23
>>> cobweb.min.js:12 Couldn't load URL
>>> 'C:/x3d-code/www.web3d.org/x3d/content/examples/HelloWorld.x3d':
>>> cobweb.min.js:11 GET
>>> https://crossorigin.me/C:/x3d-code/www.web3d.org/x3d/content/examples/HelloWorld.x3d
>>>
>>> 500 ()e.dataType.binary.e.dataType.send @ cobweb.min.js:11oe.extend.ajax
>>> @ cobweb.min.js:3e.extend.loadDocumentAsync @
>>> cobweb.min.js:12e.extend.loadDocumentError @
>>> cobweb.min.js:12e.ajax.error @ cobweb.min.js:12h @
>>> cobweb.min.js:2d.fireWith @ cobweb.min.js:2i @ cobweb.min.js:3i.onerror
>>> @ cobweb.min.js:11e.dataType.binary.e.Re: [WWW-Vrml] *** dataType.send @
>>> cobweb.min.js:11oe.extend.ajax @
>>> cobweb.min.js:3e.extend.loadDocumentAsync @
>>> cobweb.min.js:12e.extend.loadDocumentError @
>>> cobweb.min.js:12e.ajax.error @ cobweb.min.js:12h @
>>> cobweb.min.js:2d.fireWith @ cobweb.min.js:2i @ cobweb.min.js:3i.onerror
>>> @ cobweb.min.js:11e.dataType.binary.e.dataType.send @
>>> cobweb.min.js:11oe.extend.ajax @
>>> cobweb.min.js:3e.extend.loadDocumentAsync @
>>> cobweb.min.js:12e.extend.loadDocument @
>>> cobweb.min.js:12e.extend.createX3DFromURL @
>>> cobweb.min.js:12e.extend.loadURL @ cobweb.min.js:32e.extend.realize @
>>> cobweb.min.js
>>> :32t.pr
>>>
>>> ocessInterests @ cobweb.min.js:3e.extend.processEvent @
>>> cobweb.min.js:4e.processEvents @ cobweb.min.js:8e.extend.traverse @
>>> cobweb.min.js:23
>>> cobweb.min.js:12 Couldn't load URL
>>> 'https://crossorigin.me/C:/x3d-code/www.web3d.org/x3d/content/examples/HelloWorld.x3d':
>>>
>>>
>>>
>>> ============================================
>>>
>>> On 4/4/2016 9:52 AM, Holger Seelig wrote:
>>>> Cobweb X3D Browser, Version 1.23
>>>>
>>>> We finally released Cobweb version 1.23, now.  This is the first
>>>> official release for Opera Browser, Google Chrome and Mozilla Firefox.
>>>> We did not celebrate this remarkable event yet, but beer was already
>>>> purchased and would be used this week for sure.
>>>>
>>>> I should say that Cobweb 1.23 took a lot of effort and we are proud to
>>>> announce that the final result exceeded our expectations. The journey
>>>> had just begun!
>>>>
>>>> We’ve gathered as much feedback about Cobweb 1.22 as possible from our
>>>> users and eliminated many mistakes and crude points in the new
>>>> release.  Cobweb is now ready for Opera and Chrome.  We are not
>>>> inventing new functions.  Instead, the stable code base of Cobweb
>>>> makes it possible to run in different browsers.
>>>>
>>>> Additionally we added three new examples to our website
>>>> http://titania.create3000.de/cobweb/.  First, »Milkyway and Beyond« an
>>>> example how to visualise huge scientific data of our universe.
>>>> Second, »FourmiEarth« processed data from the well known Fourmilab
>>>> website, to display a pleasant view of our home planet.  Third,
>>>> »Currencies« processes data of the currencies data of the European
>>>> Central Bank, to show a nice animated graph of it. To do this we draw
>>>> thick 3D lines using an Extrusion node.
>>>>
>>>> Visit Cobweb website now:
>>>> http://titania.create3000.de/cobweb/
>>>>
>>>> Thank to all who helped us.
>>>
>>>
>>> all the best, Don
>>
>>
>
>
> all the best, Don


-- 
Holger Seelig
Mediengestalter Digital – Digital Media Designer

Scheffelstraße 31a
04277 Leipzig
Germany

Cellular: +49 1577 147 26 11
E-Mail:   holger.seelig at create3000.de
Web:      http://titania.create3000.de

Future to the fantasy ★ ★