Page area (CSS px)
—
| innerWidth × innerHeight | — |
| visualViewport | — |
| documentElement client | — |
| screen width × height | — |
| screen avail | — |
| devicePixelRatio | — |
| Physical px (inner × DPR) | — |
| Aspect ratio | — |
| Orientation | — |
| Resize events seen | 0 |
The dashed amber frame marks the page edge.
GPS speed
— km/h
| Status | Not started |
| Accuracy | — |
| Heading | — |
| Fixes received | 0 |
| Avg gap between fixes | — |
| Speed field present | — |
Coordinates are not shown or stored, only speed, accuracy and timing.
Browser
| Chrome version | — |
| User agent | — |
| Language / time zone | — |
| Colour scheme | — |
| Touch points | — |
| CPU threads / memory | — |
| Online / connection | — |
WebGL (map rendering)
Testing…
Expect a solid blue box. Black = drawing failed.
| WebGL 1 / WebGL 2 | — |
| Renderer | — |
| Max texture size | — |
| Pixel read-back | — |
Sound and voice
| Speech synthesis | — |
| Voices (EN / FR) | — |
| Last test | — |
Event log
Report
Build the report after a drive, then copy it (or photograph the screen) and send it back.