Write Image as PDF with Box saying "Loading [MathJax]/extensions/MathMenu.js"

Hello,

library(plotly)

n <- 1e3
x <- rnorm(n)
y <- 2*x + rnorm(n, sd = 5)

fig <- plot_ly(x = x, y = y, alpha  = 0.01,type = "scatter")

save_image(fig,"test.pdf")
browseURL("test.pdf")

When I run the above code, I get the box saying Loading [MathJax]/extensions/MathMenu.js，I see the Solution in plotly.py issues 3469:

import plotly.io as pio   
pio.kaleido.scope.mathjax = None

How should I solve it in R？

My sessionInfo is:

> sessionInfo()
R version 4.2.0 (2022-04-22)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 20.04.4 LTS

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8    LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] plotly_4.10.0        webshot2_0.1.0       RefManageR_1.4.0     knitcitations_1.0.12 shinyWidgets_0.7.5  
 [6] ggplot2_3.4.0        maftools_2.12.0      shinyjqui_0.4.1      shinyFeedback_0.4.0  bslib_0.4.2         
[11] htmltools_0.5.4      shiny_1.7.4         

loaded via a namespace (and not attached):
 [1] httr_1.4.3         sass_0.4.4         tidyr_1.2.0        jsonlite_1.8.4     viridisLite_0.4.0  splines_4.2.0     
 [7] here_1.0.1         assertthat_0.2.1   yaml_2.3.5         pillar_1.7.0       backports_1.4.1    lattice_0.20-45   
[13] glue_1.6.2         reticulate_1.25    digest_0.6.31      RColorBrewer_1.1-3 promises_1.2.0.1   colorspace_2.0-3  
[19] websocket_1.4.1    httpuv_1.6.7       Matrix_1.5-1       plyr_1.8.7         pkgconfig_2.0.3    bibtex_0.5.1      
[25] purrr_1.0.1        xtable_1.8-4       scales_1.2.0       processx_3.7.0     fontawesome_0.4.0  later_1.3.0       
[31] tibble_3.1.7       generics_0.1.2     ellipsis_0.3.2     cachem_1.0.6       withr_2.5.0        lazyeval_0.2.2    
[37] cli_3.5.0          survival_3.3-1     magrittr_2.0.3     crayon_1.5.2       mime_0.12          ps_1.7.0          
[43] fansi_1.0.3        xml2_1.3.3         tools_4.2.0        data.table_1.14.2  lifecycle_1.0.3    stringr_1.5.0     
[49] munsell_0.5.0      compiler_4.2.0     jquerylib_0.1.4    chromote_0.1.1     rlang_1.0.6        grid_4.2.0        
[55] rstudioapi_0.13    rappdirs_0.3.3     htmlwidgets_1.6.1  crosstalk_1.2.0    DNAcopy_1.70.0     gtable_0.3.0      
[61] DBI_1.1.2          R6_2.5.1           lubridate_1.8.0    dplyr_1.0.9        fastmap_1.1.0      utf8_1.2.2        
[67] rprojroot_2.0.3    stringi_1.7.8      Rcpp_1.0.9         vctrs_0.5.2        png_0.1-7          tidyselect_1.2.0

Start by reproducing the save_image(fig, "test.pdf") example with plotly 4.10.0 on the reported Ubuntu setup, then compare the R export path with plotly.py issue 3469. Inspect how webshot2 and chromote handle the MathJax loading page. Done means PDF export completes without the loading box and the behavior is covered by an appropriate regression check.