GHA: "118-highcharter-births" app plots are not displayed

[MadhulikaTanuboddi]

1. Run the app https://github.com/rstudio/shinycoreci-apps/blob/master/apps/118-highcharter-births/app.R
2. Notice the plots are not shown
3. Update the year/select a plot/theme. Plots are not shown

No console errors shown in the browser dev inspector.

In the R Console, following is shown

`summarise()` has grouped output by 'day_of_week'. You can override using the `.groups` argument.
Input to asJSON(keep_vec_names=TRUE) is a named vector. In a future version of jsonlite, this option will not be supported, and named vectors will be translated into arrays instead of objects. If you want JSON object output, please use a named list instead. See ?toJSON.

Session info

sessioninfo::session_info()
─ Session info ───────────────────────────────────────────────────────────────────────────────────────────
 setting  value                       
 version  R version 4.0.5 (2021-03-31)
 os       macOS Mojave 10.14.6        
 system   x86_64, darwin17.0          
 ui       RStudio                     
 language (EN)                        
 collate  en_US.UTF-8                 
 ctype    en_US.UTF-8                 
 tz       America/Los_Angeles         
 date     2021-05-13                  

─ Packages ───────────────────────────────────────────────────────────────────────────────────────────────
 package     * version     date       lib source                               
 assertthat    0.2.1       2019-03-21 [1] CRAN (R 4.0.0)                       
 backports     1.2.1       2020-12-09 [1] CRAN (R 4.0.2)                       
 base64enc     0.1-3       2015-07-28 [1] CRAN (R 4.0.0)                       
 broom         0.7.4       2021-01-29 [1] CRAN (R 4.0.2)                       
 bslib         0.2.4.9003  2021-05-04 [1] Github (rstudio/bslib@ba6a80d)       
 cachem        1.0.4.9000  2021-03-12 [1] Github (r-lib/cachem@5964320)        
 callr         3.7.0       2021-04-20 [1] CRAN (R 4.0.2)                       
 cli           2.5.0.9000  2021-04-29 [1] Github (r-lib/cli@55028b1)           
 crayon        1.4.1       2021-02-08 [1] CRAN (R 4.0.2)                       
 curl          4.3.1       2021-04-30 [1] CRAN (R 4.0.2)                       
 data.table    1.13.6      2020-12-30 [1] CRAN (R 4.0.2)                       
 DBI           1.1.1       2021-01-15 [1] CRAN (R 4.0.2)                       
 debugme       1.1.0       2017-10-22 [1] CRAN (R 4.0.0)                       
 digest        0.6.27      2020-10-24 [1] CRAN (R 4.0.2)                       
 dplyr       * 1.0.5       2021-03-05 [1] CRAN (R 4.0.2)                       
 ellipsis      0.3.2       2021-04-29 [1] CRAN (R 4.0.5)                       
 evaluate      0.14        2019-05-28 [1] CRAN (R 4.0.0)                       
 fansi         0.4.2       2021-01-15 [1] CRAN (R 4.0.2)                       
 fastmap       1.1.0       2021-02-11 [1] Github (r-lib/fastmap@52134c4)       
 generics      0.1.0       2020-10-31 [1] CRAN (R 4.0.2)                       
 glue          1.4.2       2020-08-27 [1] CRAN (R 4.0.2)                       
 highcharter * 0.8.2       2020-07-26 [1] CRAN (R 4.0.2)                       
 hms           1.0.0       2021-01-13 [1] CRAN (R 4.0.2)                       
 htmltools     0.5.1.9003  2021-05-06 [1] Github (rstudio/htmltools@e12171e)   
 htmlwidgets   1.5.3       2020-12-10 [1] CRAN (R 4.0.2)                       
 httpuv        1.6.1       2021-05-11 [1] Github (rstudio/httpuv@13465f0)      
 httr          1.4.2       2020-07-20 [1] CRAN (R 4.0.2)                       
 igraph        1.2.6       2020-10-06 [1] CRAN (R 4.0.2)                       
 jquerylib     0.1.4       2021-04-26 [1] CRAN (R 4.0.2)                       
 jsonlite      1.7.2       2020-12-09 [1] CRAN (R 4.0.3)                       
 knitr         1.33        2021-04-24 [1] CRAN (R 4.0.2)                       
 later         1.2.0       2021-04-29 [1] Github (r-lib/later@5b8cc6b)         
 lattice       0.20-41     2020-04-02 [1] CRAN (R 4.0.5)                       
 lifecycle     1.0.0       2021-02-15 [1] CRAN (R 4.0.3)                       
 lubridate     1.7.9.2     2020-11-13 [1] CRAN (R 4.0.2)                       
 magrittr      2.0.1       2020-11-17 [1] CRAN (R 4.0.2)                       
 mime          0.10        2021-02-13 [1] CRAN (R 4.0.2)                       
 parsedate     1.2.0       2019-05-08 [1] CRAN (R 4.0.0)                       
 pillar        1.6.0       2021-04-13 [1] CRAN (R 4.0.2)                       
 pingr         2.0.1       2020-06-22 [1] CRAN (R 4.0.2)                       
 pkgconfig     2.0.3       2019-09-22 [1] CRAN (R 4.0.0)                       
 png           0.1-7       2013-12-03 [1] CRAN (R 4.0.0)                       
 prettyunits   1.1.1       2020-01-24 [1] CRAN (R 4.0.0)                       
 processx      3.5.1       2021-04-04 [1] CRAN (R 4.0.2)                       
 progress      1.2.2       2019-05-16 [1] CRAN (R 4.0.0)                       
 promises      1.2.0.9000  2021-03-12 [1] Github (rstudio/promises@a821b88)    
 ps            1.6.0       2021-02-28 [1] CRAN (R 4.0.3)                       
 purrr         0.3.4       2020-04-17 [1] CRAN (R 4.0.0)                       
 quantmod      0.4.18      2020-12-09 [1] CRAN (R 4.0.2)                       
 R6            2.5.0       2020-10-28 [1] CRAN (R 4.0.2)                       
 Rcpp          1.0.6       2021-01-15 [1] CRAN (R 4.0.2)                       
 rematch       1.0.1       2016-04-21 [1] CRAN (R 4.0.0)                       
 renv          0.13.2      2021-03-30 [1] CRAN (R 4.0.3)                       
 rlang         0.4.11.9000 2021-05-11 [1] Github (r-lib/rlang@7cd1f5c)         
 rlist         0.4.6.1     2016-04-04 [1] CRAN (R 4.0.0)                       
 rmarkdown     2.8.1       2021-05-11 [1] Github (rstudio/rmarkdown@e98207f)   
 rsconnect     0.8.16-9002 2021-02-16 [1] Github (rstudio/rsconnect@8c11a55)   
 rstudioapi    0.13        2020-11-12 [1] CRAN (R 4.0.2)                       
 sass          0.3.1.9003  2021-05-04 [1] Github (rstudio/sass@6166162)        
 sessioninfo   1.1.1       2018-11-05 [1] CRAN (R 4.0.0)                       
 shiny       * 1.6.0.9000  2021-05-11 [1] Github (rstudio/shiny@383fa6c)       
 shinycoreci   0.0.0.9005  2021-04-28 [1] Github (rstudio/shinycoreci@978758b) 
 shinyjster  * 0.0.0.9009  2021-03-17 [1] Github (schloerke/shinyjster@e6f3b77)
 shinytest     1.5.0       2021-01-13 [1] CRAN (R 4.0.2)                       
 showimage     1.0.0       2018-01-24 [1] CRAN (R 4.0.0)                       
 stringi       1.6.1       2021-05-10 [1] CRAN (R 4.0.5)                       
 stringr       1.4.0       2019-02-10 [1] CRAN (R 4.0.0)                       
 testthat      3.0.2       2021-02-14 [1] CRAN (R 4.0.2)                       
 tibble        3.1.1       2021-04-18 [1] CRAN (R 4.0.2)                       
 tidyr       * 1.1.2       2020-08-27 [1] CRAN (R 4.0.2)                       
 tidyselect    1.1.0       2020-05-11 [1] CRAN (R 4.0.0)                       
 TTR           0.24.2      2020-09-01 [1] CRAN (R 4.0.2)                       
 utf8          1.2.1       2021-03-12 [1] CRAN (R 4.0.3)                       
 vctrs         0.3.8       2021-04-29 [1] CRAN (R 4.0.5)                       
 webdriver     1.0.6       2021-01-12 [1] CRAN (R 4.0.2)                       
 withr         2.4.2       2021-04-18 [1] CRAN (R 4.0.2)                       
 xfun          0.22        2021-03-11 [1] CRAN (R 4.0.3)                       
 xtable        1.8-4       2019-04-21 [1] CRAN (R 4.0.0)                       
 xts           0.12.1      2020-09-09 [1] CRAN (R 4.0.2)                       
 yaml          2.2.1       2020-02-01 [1] CRAN (R 4.0.0)                       
 zoo           1.8-9       2021-03-09 [1] CRAN (R 4.0.2)                       

[1] /Library/Frameworks/R.framework/Versions/4.0/Resources/library

Shinytest changes:

Started failing with the build https://github.com/rstudio/shinycoreci-apps/runs/2553670646?check_suite_focus=true (from May 10)