WebIO/Blink random failure with PlotlyJS

[mzaffalon]

Since a couple of days, I get intermittent failures. I am not experienced enough to know if this is a WebIO or a Blink problem.

   _       _ _(_)_     |  Documentation: https://docs.julialang.org
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   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.8.4 (2022-12-23)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
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(@v1.8) pkg> activate .
  Activating project at `C:\Users\michele.zaffalon\tmp`

julia> using WebIO, PlotlyJS

julia> plot(scatter(y=randn(100)))
[ Info: Listening on: 127.0.0.1:9404, thread id: 1

julia> plot(scatter(y=randn(100)))

julia> plot(scatter(y=randn(100)))

julia> plot(scatter(y=randn(100)))

julia> plot(scatter(y=randn(100)))

julia> plot(scatter(y=randn(100)))
┌ Error: An error occurred while trying to initialize a Blink window!
│   exception =
│    Javascript error   ReferenceError: webio is not defined
│    Stacktrace:
│     [1] js(o::Blink.Page, js::WebIO.JSString; callback::Bool)
│       @ Blink C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\rpc\rpc.jl:53
│     [2] js(win::Blink.AtomShell.Window, s::WebIO.JSString; callback::Bool)
│       @ Blink.AtomShell C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\AtomShell\window.jl:263
│     [3] js(o::Blink.AtomShell.Window, j::Expr; callback::Bool)
│       @ Blink C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\rpc\rpc.jl:61
│     [4] js
│       @ C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\rpc\rpc.jl:61 [inlined]
│     [5] initwebio!(w::Blink.AtomShell.Window)
│       @ Blink.AtomShell C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\AtomShell\webio.jl:17
│     [6] initwindow!(w::Blink.AtomShell.Window, callback_cond::Condition)
│       @ Blink.AtomShell C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\AtomShell\window.jl:92
│     [7] (::Blink.AtomShell.var"#9#10"{Blink.AtomShell.Window, Condition})()
│       @ Blink.AtomShell .\task.jl:484
└ @ Blink.AtomShell C:\Users\michele.zaffalon\.julia\packages\Blink\SMxOp\src\AtomShell\window.jl:69

(tmp) pkg> st
Status `C:\Users\michele.zaffalon\tmp\Project.toml`
  [f0f68f2c] PlotlyJS v0.18.10
  [0f1e0344] WebIO v0.8.20

[mzaffalon]

Related JuliaPlots/PlotlyJS.jl#460.

[takbal]

The issue seems to be introduced with the recent (2023/01/06) v0.12.6 release of Blink.

Adding [email protected] seems to solve the issue, even with latest PlotlyJS and WebIO.

Created the same ticket in Blink:

JuliaGizmos/Blink.jl#300