savefig produce error and failed to save figure when offline

**versioninfo():**
Julia Version 1.7.3
Commit 742b9abb4d (2022-05-06 12:58 UTC)
Platform Info:
OS: Linux (x86_64-pc-linux-gnu)
CPU: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-12.0.1 (ORCJIT, skylake)

**The following code:**
```
using PlotlyJS

data = bar(;x=["giraffes", "orangutans", "monkeys"],
y=[20, 14, 23])
testfig=plot(data)

PlotlyJS.savefig(testfig,"fig1.jpeg")

```

**Got this error when not connected to the internet**
```
Transform failed with error code 1: Failed to serialize document: Uncaught
Stacktrace:
[1] error(s::String)
@ Base ./error.jl:33
[2] savefig(p::Plot{Vector{GenericTrace{Dict{Symbol, Any}}}, Layout{Dict{Symbol, Any}}, Vector{PlotlyFrame}}; width::Nothing, height::Nothing, scale::Nothing, format::String)
@ PlotlyJS ~/.julia/packages/PlotlyJS/4jzLr/src/kaleido.jl:110
[3] savefig(p::PlotlyJS.SyncPlot; kwargs::Base.Pairs{Symbol, Union{Nothing, String}, NTuple{4, Symbol}, NamedTuple{(:width, :height, :scale, :format), Tuple{Nothing, Nothing, Nothing, String}}})
@ PlotlyJS ~/.julia/packages/PlotlyJS/4jzLr/src/kaleido.jl:71
[4] savefig(io::IOStream, p::PlotlyJS.SyncPlot; width::Nothing, height::Nothing, scale::Nothing, format::String)
@ PlotlyJS ~/.julia/packages/PlotlyJS/4jzLr/src/kaleido.jl:154
[5] (::PlotlyJS.var"#36#37"{Nothing, Nothing, Nothing, PlotlyJS.SyncPlot})(f::IOStream)
@ PlotlyJS ~/.julia/packages/PlotlyJS/4jzLr/src/kaleido.jl:187
[6] open(::PlotlyJS.var"#36#37"{Nothing, Nothing, Nothing, PlotlyJS.SyncPlot}, ::String, ::Vararg{String}; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
@ Base ./io.jl:330
[7] open
@ ./io.jl:328 [inlined]
[8] savefig(p::PlotlyJS.SyncPlot, fn::String; format::Nothing, width::Nothing, height::Nothing, scale::Nothing)
@ PlotlyJS ~/.julia/packages/PlotlyJS/4jzLr/src/kaleido.jl:186
[9] savefig(p::PlotlyJS.SyncPlot, fn::String)
@ PlotlyJS ~/.julia/packages/PlotlyJS/4jzLr/src/kaleido.jl:181
[10] top-level scope
```

**and fig1.jpeg has 0 bytes.**

**When I connect to the internet fig1.jpeg works but I also get error mesages:**
```
UndefVarError: setexcludinghandlers! not defined
Stacktrace:
[1] set_nosync(ob::Observables.Observable{Dict{Any, Any}}, val::Dict{String, Any})
@ WebIO ~/.julia/packages/WebIO/4JqEH/src/scope.jl:352
[2] dispatch(ctx::WebIO.Scope, key::String, data::Dict{String, Any})
@ WebIO ~/.julia/packages/WebIO/4JqEH/src/scope.jl:368
[3] dispatch_command(conn::Blink.AtomShell.WebIOBlinkComm, data::Dict{String, Any})
@ WebIO ~/.julia/packages/WebIO/4JqEH/src/messaging.jl:104
[4] dispatch(conn::Blink.AtomShell.WebIOBlinkComm, data::Dict{String, Any})
@ WebIO ~/.julia/packages/WebIO/4JqEH/src/messaging.jl:81
[5] (::Blink.AtomShell.var"#22#23"{Blink.AtomShell.WebIOBlinkComm})(msg::Dict{String, Any})
@ Blink.AtomShell ~/.julia/packages/Blink/mwJC9/src/AtomShell/webio.jl:24
[6] #invokelatest#2
@ ./essentials.jl:716 [inlined]
[7] invokelatest
@ ./essentials.jl:714 [inlined]
[8] handle_message(o::Blink.Page, m::Dict{String, Any})
@ Blink ~/.julia/packages/Blink/mwJC9/src/rpc/callbacks.jl:7
[9] macro expansion
@ ~/.julia/packages/Lazy/9Xnd3/src/macros.jl:268 [inlined]
[10] ws_handler(req::Dict{Any, Any})
@ Blink ~/.julia/packages/Blink/mwJC9/src/content/server.jl:56
[11] splitquery(app::typeof(Blink.ws_handler), req::Dict{Any, Any})
@ Mux ~/.julia/packages/Mux/3h8RY/src/basics.jl:31
[12] #1
@ ~/.julia/packages/Mux/3h8RY/src/Mux.jl:10 [inlined]
[13] wcatch(app::Mux.var"#1#2"{typeof(Mux.splitquery), typeof(Blink.ws_handler)}, req::Dict{Any, Any})
@ Mux ~/.julia/packages/Mux/3h8RY/src/websockets_integration.jl:12
[14] #1
@ ~/.julia/packages/Mux/3h8RY/src/Mux.jl:10 [inlined]
[15] todict
@ ~/.julia/packages/Mux/3h8RY/src/basics.jl:25 [inlined]
[16] #3 (repeats 2 times)
@ ~/.julia/packages/Mux/3h8RY/src/Mux.jl:14 [inlined]
[17] (::Mux.var"#1#2"{Mux.var"#3#4"{Mux.var"#3#4"{typeof(Mux.todict), typeof(Mux.wcatch)}, typeof(Mux.splitquery)}, typeof(Blink.ws_handler)})(x::Tuple{HTTP.Messages.Request, WebSockets.WebSocket{Sockets.TCPSocket}})
@ Mux ~/.julia/packages/Mux/3h8RY/src/Mux.jl:10
[18] (::Mux.var"#9#10"{Mux.App})(req::HTTP.Messages.Request, client::WebSockets.WebSocket{Sockets.TCPSocket})
@ Mux ~/.julia/packages/Mux/3h8RY/src/server.jl:49
[19] upgrade(f::Mux.var"#9#10"{Mux.App}, stream::HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}})
@ WebSockets ~/.julia/packages/WebSockets/QcswW/src/HTTP.jl:201
[20] (::WebSockets.var"#_servercoroutine#11"{WebSockets.ServerWS})(stream::HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}})
@ WebSockets ~/.julia/packages/WebSockets/QcswW/src/HTTP.jl:370
[21] macro expansion
@ ~/.julia/packages/HTTP/aTjcj/src/Servers.jl:415 [inlined]
[22] (::HTTP.Servers.var"#13#14"{WebSockets.var"#_servercoroutine#11"{WebSockets.ServerWS}, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}, HTTP.Servers.Server{Nothing, Sockets.TCPServer}, HTTP.Streams.Stream{HTTP.Messages.Request, HTTP.ConnectionPool.Transaction{Sockets.TCPSocket}}})()
@ HTTP.Servers ./task.jl:429
```

**It would be very helpful if someone could help me find a way to save the figure as a local file without connecting to the internet. Thank you!**

[jls.txt](https://github.com/JuliaPlots/PlotlyJS.jl/files/9103692/jls.txt)