xpra icon
Bug tracker and wiki

Opened 10 months ago

Last modified 6 months ago

#2483 assigned defect

html5 scroll paint error and disconnection

Reported by: Antoine Martin Owned by: Antoine Martin
Priority: major Milestone: 4.1
Component: html5 Version: 3.0.x
Keywords: Cc:


Caught this in my server log and the client got disconnected:

error painting scroll TypeError: Argument 1 of CanvasRenderingContext2D.drawImage could not be converted to any of: HTMLImageElement, SVGImageElement, HTMLCanvasElement, HTMLVideoElement, ImageBitmap.

client was running an xterm and gedit

Change History (3)

comment:1 Changed 10 months ago by Antoine Martin

Status: newassigned
Summary: html5 scroll paint errorhtml5 scroll paint error and disconnection

#2487 closed as duplicate of this bug.

comment:2 Changed 10 months ago by Antoine Martin

The line that causes the error is:
{{{ this.offscreen_canvas_ctx.drawImage(this.draw_canvas, sx, sy, sw, sh, sx+xdelta, sy+ydelta, sw, sh);

Two things to look into:

  • swap_buffers must be called at least once before we can use scroll paint
  • maybe the paint exception handler is buggy?
Version 0, edited 10 months ago by Antoine Martin (next)

comment:3 Changed 6 months ago by Antoine Martin

Milestone: 4.04.1

(not seen it since)

Note: See TracTickets for help on using tickets.