Script Error :0:0

[offensivelyaverage]

Opening a compatible Photo Sphere with eog 3.20.2 on Ubuntu 16.10 I get "webview error: script error.: :0:0"

I have all listed dependencies installed, including python3-magic (not listed by required), and the image lists seems like it should work:

[Aerilius]

Does it always occur to you, or only sometimes?

It has never happend during testing of this version of my code on many panoramas. Today I get it about once in 20 times opening the image, it is totally indeterministic.

It is likely an error thrown in an asynchronous operation in one of the used libraries (maybe also a timing issue), unfortunately asynchronous errors totally lack info about the location in the code.

[offensivelyaverage]

Always. I'm yet to get a single photosphere/panorama photo to load.

[Aerilius]

A possibility for such an error to occur always is when WebGL was not available (for whatever reason). I added a (slow) fallback to canvas rendering. Can you check if that solves the issue on your side as well?

[offensivelyaverage]

Alas, it still doesn't work for me on either Ubuntu 16.04 LTS or Ubuntu 16.10.

It does do something new on the latter: when opening a panorama image i get the 'script error' error, but when paging left or right to another panorama image i get 'type error' error.

Perhaps related?

[Aerilius]

That's a follow-up error.

I had tested booting from a fresh 16.10 live system (with only the gir1.2-gexiv2 package added) and it worked without error, so there seem not to be any dependencies missing. However when I now tested in VirtualBox, I get two different situations:

• with 3D acceleration disabled before-hand: it falls back to Canvas rendering and shows the panorama
• with 3D acceleration enabled: Webkit does not start properly (no matter whether WebGL s actually used or not)

I believe that this could mean VirtualBox's 3D acceleration is still not stable. Were you doing your test in a virtual machine?

[charlesmillet]

I have the same problem on Ubuntu 16.10 (not a virtual machine).

[depau]

I have the same issue too. Not using a virtual machine. I'm on a Intel Mobile 4 Series Chipset Integrated Graphics, with drivers from 01.org, on Ubuntu 16.10 x64.

$ glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Mobile Intel® GM45 Express Chipset 
OpenGL version string: 2.1 Mesa 12.0.3
OpenGL shading language version string: 1.20
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 12.0.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16
OpenGL ES profile extensions:

$ eog ~/Downloads/PANO_20150812_194931.jpg
(eog:3616): Gtk-WARNING **: Theme parsing error: eog.css:6:34: The style property GtkScrollbar:min-slider-length is deprecated and shouldn't be used anymore. It will be removed in a future version
Traceback (most recent call last):
  File "/usr/lib/x86_64-linux-gnu/eog/plugins/pythonconsole/__init__.py", line 62, in do_activate
    model.append_item(item)
AttributeError: 'NoneType' object has no attribute 'append_item'

** (eog:3616): CRITICAL **: eog_reload_plugin_activate: assertion 'G_IS_MENU (model)' failed
Duplicate property or field node
Duplicate property or field node
Duplicate property or field node

(eog:3616): Gtk-WARNING **: Allocating size to EogStatusbar 0x560da4126dd0 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?
WebView error: Script error.: :0:0
Error loading module '/usr/lib/firefox/plugins/nppdf.so': /usr/lib/firefox/plugins/nppdf.so: wrong ELF class: ELFCLASS32
Error scanning plugin /usr/lib/firefox/plugins/nppdf.so, /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitPluginProcess returned 256 exit status
Error loading module '/usr/lib/mozilla/plugins/nppdf.so': /usr/lib/mozilla/plugins/nppdf.so: wrong ELF class: ELFCLASS32
Error scanning plugin /usr/lib/mozilla/plugins/nppdf.so, /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitPluginProcess returned 256 exit status

[Aerilius]

charlesmillet and Depaulicious, thanks for confirming. Unfortunately I cannot reproduce it.
I suspect that either the WebGL initialization fails, or it's a bug in my code, or transfering the image data uri fails.

I notice you have slightly older OpenGL version support (2.1 and GLSL 1.20, I have 3.0 and GLSL 1.30). I don't know if I can somehow set my computer to use (or emulate) an older version for testing.

As a sidenote, although plugins are disabled in this webview, Webkit outputs "Error loading module". I had this once after upgrading to 64bit while still having 32bit binary plugins in my user profile's ~/.mozilla folder.

[depau]

@Aerilius is there a way I can try it on a web browser? Just to see if a browser is able to render it.

[vojtabiberle]

I'm affected with this bug too. Just adding myself to discussion. Maybe I can help ...

[Aerilius]

I added changes to the htm file for debugging (in the new branch issue7).
https://github.com/Aerilius/eog_panorama/blob/issue7/eog_panorama/eog_panorama.htm

I would be interested in two tests:

A) Does it work in a browser? (WebKit2 in Gtk is not very unstable, so results may be different in a browser).

1. Open the ego_panorama/eog_panorama.htm file in a browser.
2. Open the Developer console (Ctrl+Shift+I) and check for errors.
3. On the console, enter test_show_panorama()
4. It should log "show_panorama_completed" which is normally sent back to the Eye of Gnome plugin.

B) All JavaScripts are now embedded in one file so that error messages are not anymore censored by cross-origin policy.

1. Open a panorama image in Eye of Gnome from a terminal: eog image.jpg
2. Check for the hopefully more detailed script error.

Thank you very much for testing! I cannot promise I can find and solve the problem but I hope so. Also WebKitGTK sometimes crashes, and maybe it would be it is rather worth the extra effort to integrate a panorama viewer from some other GTK-based opensource project.

[vojtabiberle]

Hello,
Test A:

test_show_panorama()
undefined
THREE.WebGLRenderer 82  eog_panorama.htm:19526:3
Error: WebGL: texImage2D: Conversion requires pixel reformatting.  eog_panorama.htm:19041:5
Array [ "show_panorama_completed", undefined ]

Test B:

$ eog

(eog:24144): Gtk-WARNING **: Theme parsing error: eog.css:6:34: The style property GtkScrollbar:min-slider-length is deprecated and shouldn't be used anymore. It will be removed in a future version

** (eog:24144): CRITICAL **: eog_reload_plugin_activate: assertion 'G_IS_MENU (model)' failed
Traceback (most recent call last):
  File "/usr/lib/x86_64-linux-gnu/eog/plugins/pythonconsole/__init__.py", line 62, in do_activate
    model.append_item(item)
AttributeError: 'NoneType' object has no attribute 'append_item'

(eog:24144): EOG-WARNING **: Failed to open file '/home/bazil/.cache/thumbnails/normal/68129c6fd87ce2f363143b7163fd8bc4.png': Adresář nebo soubor neexistuje

(eog:24144): Gtk-WARNING **: Allocating size to EogStatusbar 0x55ba0f65fde0 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?

And panorama in EOG worked! 👍