This happened when the swf tried to dynamically load an old flv:

Error Info

Error name: Error
Error message: panicked at /home/runner/.cargo/git/checkouts/nihav-vp6-5ffcee1e6441ab55/83c7e10/nihav-duck/src/codecs/vp56.rs:1030:18:
index out of bounds: the len is 2 but the index is 2
Error stack:

Error: panicked at /home/runner/.cargo/git/checkouts/nihav-vp6-5ffcee1e6441ab55/83c7e10/nihav-duck/src/codecs/vp56.rs:1030:18:
index out of bounds: the len is 2 but the index is 2
    at __wbg_new_c9ea13ea803a692e (chrome-extension://donbcfbmhbcapadipfkeojnmajbakjdc/dist/655.js:2491:25)
    at ruffle_web.wasm.js_sys::Error::new::__wbg_new_c9ea13ea803a692e::ha9f2a45757a26997 externref shim (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[12291]:0x926c01)
    at ruffle_web.wasm.ruffle_web::global_init::{{closure}}::hafbab6bed90c47a4 (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[10294]:0x8fb22a)
    at ruffle_web.wasm.std[a543996e6e7dbf1e]::panicking::panic_with_hook (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[6998]:0x85e7e0)
    at ruffle_web.wasm.core[c5930c85a12de822]::panicking::panic_fmt (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[10540]:0x9003ad)
    at ruffle_web.wasm.core[c5930c85a12de822]::panicking::panic_bounds_check (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[9551]:0x8e891c)
    at ruffle_web.wasm.nihav_duck::codecs::vp56::VP56Decoder::predict_dc::hfcd105a4312ea5e1 (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[2611]:0x56d3f3)
    at ruffle_web.wasm.nihav_duck::codecs::vp56::VP56Decoder::decode_planes::h96e1fa5830d07021 (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[934]:0x8abbc)
    at ruffle_web.wasm.<ruffle_video_software::decoder::vp6::Vp6Decoder as ruffle_video_software::decoder::VideoDecoder>::decode_frame::hffaaa88ff8f68a31 (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[1308]:0x3061b5)
    at ruffle_web.wasm.<ruffle_video_external::backend::ExternalVideoBackend as ruffle_video::backend::VideoBackend>::decode_video_stream_frame::hcd4247168d319c23 (wasm://wasm/ruffle_web.wasm-0315c66e:wasm-function[3319]:0x63ea11)

Player Info

Allows script access: true
Renderer: wgpu
Adapter Backend: Gl
Adapter Name: "ANGLE (NVIDIA, Vulkan 1.3.280 (NVIDIA NVIDIA GeForce RTX 3090 (0x00002204)), NVIDIA)"
Adapter Device Type: Other
Adapter Driver Name: ""
Adapter Driver Info: "WebGL 2.0 (OpenGL ES 3.0 Chromium)"
Enabled features: Features { features_wgpu: FeaturesWGPU(TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES), features_webgpu: FeaturesWebGPU(TEXTURE_COMPRESSION_BC | FLOAT32_FILTERABLE) }
Available features: Features { features_wgpu: FeaturesWGPU(PUSH_CONSTANTS | CLEAR_TEXTURE | MULTIVIEW), features_webgpu: FeaturesWebGPU(DEPTH32FLOAT_STENCIL8 | TEXTURE_COMPRESSION_BC_SLICED_3D) }
Current limits: Limits { max_texture_dimension_1d: 32768, max_texture_dimension_2d: 32768, max_texture_dimension_3d: 16384, max_texture_array_layers: 256, max_bind_groups: 4, max_bindings_per_bind_group: 1000, max_dynamic_uniform_buffers_per_pipeline_layout: 8, max_dynamic_storage_buffers_per_pipeline_layout: 0, max_sampled_textures_per_shader_stage: 16, max_samplers_per_shader_stage: 16, max_storage_buffers_per_shader_stage: 0, max_storage_textures_per_shader_stage: 0, max_uniform_buffers_per_shader_stage: 11, max_binding_array_elements_per_shader_stage: 0, max_binding_array_sampler_elements_per_shader_stage: 0, max_uniform_buffer_binding_size: 65536, max_storage_buffer_binding_size: 0, max_vertex_buffers: 8, max_buffer_size: 268435456, max_vertex_attributes: 16, max_vertex_buffer_array_stride: 255, min_uniform_buffer_offset_alignment: 64, min_storage_buffer_offset_alignment: 256, max_inter_stage_shader_components: 120, max_color_attachments: 4, max_color_attachment_bytes_per_sample: 32, max_compute_workgroup_storage_size: 0, max_compute_invocations_per_workgroup: 0, max_compute_workgroup_size_x: 0, max_compute_workgroup_size_y: 0, max_compute_workgroup_size_z: 0, max_compute_workgroups_per_dimension: 0, min_subgroup_size: 0, max_subgroup_size: 0, max_push_constant_size: 0, max_non_sampler_bindings: 1000000, max_task_workgroup_total_count: 0, max_task_workgroups_per_dimension: 0, max_mesh_output_layers: 0, max_mesh_multiview_count: 0, max_blas_primitive_count: 0, max_blas_geometry_count: 0, max_tlas_instance_count: 0, max_acceleration_structures_per_shader_stage: 0 }
Surface quality: high
Surface samples: 4
Surface size: (550, 400, 1)
Player type: Object
SWF URL: Anavision_local.swf
Param movie: Anavision_local.swf
Param quality: high
Param bgcolor: #000000
Param allowScriptAccess: sameDomain
Attribute 0: undefined
Attribute 1: undefined
Attribute 2: undefined
Attribute 3: undefined
Attribute 4: undefined

Page Info

Page URL: http://localhost:8787/Anavision_ruffle.html
SWF URL: http://localhost:8787/Anavision_local.swf

Browser Info

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Platform: Linux x86_64
Has touch support: false

Ruffle Info

Version: 0.2.0-nightly.2026.5.7
Name: 0.2.0-nightly.2026.5.7
Channel: nightly
Built: 2026-05-07T00:31:02.695Z
Commit: 8b22c49
Is extension: true

Metadata

width: 1024
height: 500
frameRate: 25
numFrames: 1
swfVersion: 9
backgroundColor: #000000
isActionScript3: false
uncompressedLength: 323399