1407448 - WebRender canvas instances render at about 2 fps

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect, P1)

Description

[marknordine]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:58.0) Gecko/20100101 Firefox/58.0
Build ID: 20171010220102

Steps to reproduce:

Use latest Firefox Nightly.
Visit http://www.goodboydigital.com/pixijs/bunnymark/

Testing on Win 10 with GeForce 1070 and Mac OS with iMac 27" Late 2015, High Sierra.




Actual results:

Canvas updates at about 2 fps. However, holding in the mouse it runs at 60 fps.


Expected results:

Canvas runs at 60 fps without interaction.

Comment 1

[marknordine]

Seems to happen on all other canvas instances as well.

Comment 2

[Kartikaya Gupta (email:[e-mail])]

Could you attach the contents of your about:support page? Thanks.

Comment 3

[Ian Moody [:Kwan] (UTC+1)]

Attachment: linuxWRNightly58AboutSupport.txt

(In reply to Kartikaya Gupta (email:[e-mail]) from comment #2)
> Could you attach the contents of your about:support page? Thanks.

I experience the same thing on Linux (though I have to also move the mouse while button is held) so hopefully mine will be useful as well.

(Is raw data or text more useful? I went for text)

Comment 4

[Kartikaya Gupta (email:[e-mail])]

Text is fine, thanks! I expect this to be fixed by the patches in bug 1405481, so let's wait until that lands and then re-test.

Comment 5

[marknordine]

Here's my about:support on Win 10 machine:

Application Basics
------------------

Name: Firefox
Version: 58.0a1
Build ID: 20171010100200
Update Channel: nightly
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0
OS: Windows_NT 10.0
Multiprocess Windows: 1/1 (Enabled by default)
Web Content Processes: 3/4
Stylo: true (enabled by default)
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days
---------------------------------

All Crash Reports

Nightly Features
----------------

Name: Activity Stream
Version: 2017.10.06.1105-fbbf9d84
ID: [e-mail]

Name: Application Update Service Helper
Version: 2.0
ID: [e-mail]

Name: Firefox Screenshots
Version: 19.1.0
ID: [e-mail]

Name: FlyWeb
Version: 1.0.0
ID: [e-mail]

Name: Follow-on Search Telemetry
Version: 0.9.5
ID: [e-mail]

Name: Form Autofill
Version: 1.0
ID: [e-mail]

Name: Multi-process staged rollout
Version: 3.05
ID: [e-mail]

Name: Photon onboarding
Version: 0.1
ID: [e-mail]

Name: Pocket
Version: 1.0.5
ID: [e-mail]

Name: Presentation
Version: 1.0.0
ID: [e-mail]

Name: Shield Recipe Client
Version: 76
ID: [e-mail]

Name: Web Compat
Version: 1.1
ID: [e-mail]

Name: WebCompat Reporter
Version: 1.0.0
ID: [e-mail]

Extensions
----------

Name: Basic Gestures
Version: 1.2
Enabled: true
ID: {f42525d2-e7b2-46e2-ab4b-a3e6d7aba8bc}

Name: Multi-Account Containers
Version: 4.0.3
Enabled: true
ID: @testpilot-containers

Name: uBlock Origin
Version: 1.14.14
Enabled: true
ID: [e-mail]

Name: Vimium
Version: 1.60.4
Enabled: true
ID: {d7742d87-e61d-4b78-b8a1-b469842139fa}

Name: Add-on Compatibility Reporter
Version: 2.2.4
Enabled: false
ID: [e-mail]

Name: Gecko Profiler
Version: 0.17
Enabled: false
ID: [e-mail]

Name: HTTP/2 Indicator
Version: 3.0
Enabled: false
ID: [e-mail]

Name: Mouse Gestures Suite
Version: 2.5.0
Enabled: false
ID: mousegesturessuite@lemon_juice.addons.mozilla.org

Name: Spector.js
Version: 0.2.3
Enabled: false
ID: {4320ca4c-7207-4109-a96c-792a1dac9339}

Graphics
--------

Features
Compositing: WebRender
Asynchronous Pan/Zoom: none
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000011417) EGL_VERSION: 1.4 (ANGLE 2.1.0.dec065540d5f) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses
WebGL 1 Driver Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 1070 Direct3D11 vs_5_0 ps_5_0)
WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.dec065540d5f)
WebGL 1 Driver Extensions: GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object
WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_frag_depth EXT_sRGB EXT_shader_texture_lod EXT_texture_filter_anisotropic EXT_disjoint_timer_query OES_element_index_uint OES_standard_derivatives OES_texture_float OES_texture_float_linear OES_texture_half_float OES_texture_half_float_linear OES_vertex_array_object WEBGL_color_buffer_float WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context
WebGL 2 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000011417) EGL_VERSION: 1.4 (ANGLE 2.1.0.dec065540d5f) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses
WebGL 2 Driver Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 1070 Direct3D11 vs_5_0 ps_5_0)
WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.dec065540d5f)
WebGL 2 Driver Extensions: GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object
WebGL 2 Extensions: EXT_color_buffer_float EXT_texture_filter_anisotropic EXT_disjoint_timer_query OES_texture_float_linear WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context
Direct2D: true
Off Main Thread Painting Enabled: true
DirectWrite: true (10.0.15063.674)
GPU #1
Active: Yes
Description: NVIDIA GeForce GTX 1070
Vendor ID: 0x10de
Device ID: 0x1be1
Driver Version: 22.21.13.8569
Driver Date: 9-16-2017
Drivers: C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumdx.dll C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvhmi.inf_amd64_f555944108a87db5\nvldumd.dll
Subsys ID: 00000000
RAM: 8192

Diagnostics
AzureCanvasAccelerated: 0
AzureCanvasBackend: Direct2D 1.1
AzureCanvasBackend (UI Process): skia
AzureContentBackend: Direct2D 1.1
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): cairo
GPUProcessPid: 14144
GPUProcess: Terminate GPU Process
Device Reset: Trigger Device Reset
Decision Log
HW_COMPOSITING:
force_enabled by user: Force-enabled by pref
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
available by user: Enabled by pref




Media
-----

Audio Backend: wasapi
Max Channels: 2
Preferred Channel Layout: stereo
Preferred Sample Rate: 44100
Output Devices
Name: Group
LG Ultra HD-C (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
Headset (Bose AE2w 01.02.00 Hands-Free): BTHHFENUM\BthHFPAudio\8&8e65918&0&97
NVIDIA Output (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
LG Ultra HD-8 (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
DELL S2240L-C (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
Speakers (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0295&SUBSYS_103C825F&REV_1000\4&16a625d1&0&0001
Headphones (Bose AE2w 01.02.00 Stereo): BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_VID&0001009e_PID&4004\7&3b6578f6&0&000C8A68C4E6_C00000000
LG TV-C (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
LG Ultra HD-C (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
LG Ultra HD-8 (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
Input Devices
Name: Group
Headset (Bose AE2w 01.02.00 Hands-Free): BTHHFENUM\BthHFPAudio\8&8e65918&0&97
Microphone Array (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0295&SUBSYS_103C825F&REV_1000\4&16a625d1&0&0001
Internal AUX Jack (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0083&SUBSYS_103C825F&REV_1001\5&f681508&0&0001
Stereo Mix (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0295&SUBSYS_103C825F&REV_1000\4&16a625d1&0&0001

Important Modified Preferences
------------------------------

accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 358400
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.frecency_experiment: 3
browser.download.manager.alertOnEXEOpen: true
browser.places.smartBookmarksVersion: 8
browser.sessionstore.upgradeBackup.latestBuildID: 20171010100200
browser.startup.homepage_override.buildID: 20171010100200
browser.startup.homepage_override.mstone: 58.0a1
browser.tabs.closeButtons: 1
browser.tabs.loadInBackground: false
browser.tabs.warnOnClose: false
browser.urlbar.daysBeforeHidingSuggestionsPrompt: 0
browser.urlbar.default.behavior: 0
browser.urlbar.lastSuggestionsPromptDate: 20170525
browser.urlbar.maxRichResults: 12
browser.urlbar.timesBeforeHidingSuggestionsHint: 0
browser.urlbar.usepreloadedtopurls.enabled: false
dom.forms.autocomplete.formautofill: true
dom.moduleScripts.enabled: true
dom.push.userAgentID: 9dd72654f24544bdbf054da6a4b247a9
dom.streams.enabled: true
extensions.lastAppVersion: 58.0a1
font.internaluseonly.changed: true
general.autoScroll: false
gfx.webrender.blob-images: true
gfx.webrender.enabled: true
gfx.webrendest.enabled: true
javascript.options.asyncstack: false
javascript.options.streams: true
layers.acceleration.force-enabled: true
layers.async-pan-zoom.enabled: false
layers.mlgpu.sanity-test-failed: false
media.benchmark.vp9.fps: 187
media.benchmark.vp9.versioncheck: 2
media.gmp-gmpopenh264.abi: x86_64-msvc-x64
media.gmp-gmpopenh264.lastUpdate: 1488246932
media.gmp-gmpopenh264.version: 1.6
media.gmp-manager.buildID: 20171010100200
media.gmp-manager.lastCheck: 1507659763
media.gmp-widevinecdm.abi: x86_64-msvc-x64
media.gmp-widevinecdm.lastUpdate: 1504704705
media.gmp-widevinecdm.version: 1.4.8.1008
media.gmp.storage.version.observed: 1
media.hardware-video-decoding.failed: false
network.cookie.cookieBehavior: 3
network.cookie.prefsMigrated: true
network.dns.disablePrefetch: true
network.http.speculative-parallel-limit: 0
network.predictor.cleaned-up: true
network.predictor.enabled: false
network.prefetch-next: false
network.warnOnAboutNetworking: false
places.database.lastMaintenance: 1507135032
places.history.expiration.transient_current_max_pages: 107154
plugin.disable_full_page_plugin_for_types: application/pdf
privacy.clearOnShutdown.passwords: false
privacy.cpd.offlineApps: true
privacy.donottrackheader.value: 1
privacy.history.custom: true
privacy.trackingprotection.enabled: true
privacy.trackingprotection.introCount: 20
privacy.userContext.extension: @testpilot-containers
security.sandbox.content.tempDirSuffix: {1b8c54ad-df10-4383-a602-12b764326610}
security.tls.version.max: 3
security.tls.version.min: 0
services.sync.declinedEngines:
services.sync.engine.addresses.available: true
services.sync.engine.bookmarks.validation.lastTime: 1507659020
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1507659017
services.sync.lastSync: Tue Oct 10 2017 17:01:22 GMT-0300 (E. South America Standard Time)
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1506447650
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Important Locked Preferences
----------------------------

Places Database
---------------

JavaScript
----------

Incremental GC: true

Accessibility
-------------

Activated: false
Prevent Accessibility: 0
Accessible Handler Used: true
Accessibility Instantiator:

Library Versions
----------------

NSPR
Expected minimum version: 4.17
Version in use: 4.17

NSS
Expected minimum version: 3.34 Beta
Version in use: 3.34 Beta

NSSSMIME
Expected minimum version: 3.34 Beta
Version in use: 3.34 Beta

NSSSSL
Expected minimum version: 3.34 Beta
Version in use: 3.34 Beta

NSSUTIL
Expected minimum version: 3.34 Beta
Version in use: 3.34 Beta

Experimental Features
---------------------

Name: Animated Image Discarding Nightly 55
ID: [e-mail]
Description: Measures the impact of enabling animate image discarding in Firefox Nightly 55
Active: false
End Date: 1494863603186
Homepage:
Branch: disabled

Sandbox
-------

Content Process Sandbox Level: 4
Effective Content Process Sandbox Level: 4

Comment 6

[Ian Moody [:Kwan] (UTC+1)]

(In reply to Kartikaya Gupta (email:[e-mail]) from comment #4)
> Text is fine, thanks! I expect this to be fixed by the patches in bug
> 1405481, so let's wait until that lands and then re-test.

Local build with the current patches from there does not experience the issue, so looks like you're right!

Comment 7

[Darkspirit]

(In reply to Kartikaya Gupta (email:[e-mail]) from comment #4)
> Text is fine, thanks! I expect this to be fixed by the patches in bug 1405481, so let's wait until that lands and then re-test.

Nightly 58 x64 20171020100426 de_DE @ Debian Testing (KDE, Radeon RX480)
I saw this bug too when it got reported. Had the same STR (hold mouse down=smooth, otherwise 2fps)
and it's fixed now.
(Offtopic: But I saw bug 1404085 on http://www.goodboydigital.com/pixijs/bunnymark/ sometimes. Fixed with F5.)

layers forcel accel + webrender + webrendest + blob-images
> mozregression --bad 2017-10-11 --good 2017-10-13 --find-fix --profile-persistence clone-first
had to skip so many "Safe Mode" builds... sorry.
> 24:39.43 INFO: First good revision: 1f4d35d137631cde34f318fac0c33421d5360dc3
> 24:39.43 INFO: Last bad revision: 39d2b1b24e0ff48a828c89d6106ba18c0be745a8
> 24:39.43 INFO: Pushlog:
> https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=39d2b1b24e0ff48a828c89d6106ba18c0be745a8&tochange=1f4d35d137631cde34f318fac0c33421d5360dc3

Yep, this may have been fixed by bug 1405481.
"Duplicate of" or "Fixed by"?

Comment 8

[Kartikaya Gupta (email:[e-mail])]

Let's go with fixed by since this is a specific website problem and that bug was a more general thing.