update core-js version in html_dependency_corejs()

[jhk0530]

Hi, thanks for awesome work.

When reactR used in Quarto HTML page and commited to github.

This will cause security problem like below.

*note, above image says that issue closed (since I changed to not use reactR in that code)

To reproduce this, use below as contents of index.qmd and render with quarto. (Which is example from readme)

```{r}
library(reactR)
library(htmltools)

browsable(tagList(
  tags$div(id = "app"),
  tags$script(
  "
    ReactDOM.render(
      React.createElement(
        'h1',
        null,
        'Powered by React'
      ),
      document.getElementById('app')
    )
  "
  ),
  #add core-js first to work in RStudio Viewer
  html_dependency_corejs(),
  html_dependency_react()
))
```

Actually, used the core-js-2.5.3 version of the javascript library will cause this problem.

and the code

html_dependency_corejs()

which is actually works as below

htmltools::htmlDependency(name = "core-js", version = "2.5.3", 
        src = c(file = system.file("www/core-js/", package = "reactR")), 
        script = "shim.min.js")

cause this.

to solve this. updating version from 2.5.3 to further version which is not use grunt-karma as <=4.0.1 or latest(3.37.1) can be considered.

Note

I don't think core-js is required any more o to work in Rstudio viewer at now (2024)

Thanks.

[timelyportfolio]

@jhk0530 Thanks so much. You are correct that core-js is no longer required, but I do feel like I should continue to include for anyone on legacy setups. I plan to push 0.6.0 to CRAN this week, but I am worried this might require testing that would delay this release. Over the next couple of weeks, I'll try to

1. update core-js to core-js-bundle@3.37.1 which unfortunately is 229kb versus previous 85.9kb
2. remove core-js from the default dependencies in the templates but any widgets and inputs built with prior templates will still by default include core-js. Updated core-js in step 1 should mean though that everything works.

@glin any thoughts or concerns?

[glin]

@timelyportfolio No concerns, I doubt core-js is still necessary in >99% of cases. I had also wanted to remove core-js from reactable a few years ago during the IE11 EOL because of its added size, and that it was getting flagged for vulnerabilities (glin/reactable#245 (comment))

Removing it by default but leaving it in the package to opt into sounds like a good idea.

[Kaputt4]

Hi! I'm encountering the same issue with reactR 0.6.1. It's still using core-js 2.5.3 as pointed out by @jhk0530 in this fragment of code:

#' Shim Dependency for React in RStudio Viewer
#'
#' Add this first for 'React' to work in RStudio Viewer.
#'
#' @return \code{\link[htmltools]{htmlDependency}}
#' @importFrom htmltools htmlDependency
#' @export
html_dependency_corejs <- function() {
  #shim/polyfill for ES5 and ES6 so react will show up in RStudio Viewer
  #https://unpkg.com/core-js@2.5.3/
  htmltools::htmlDependency(
    name = "core-js",
    version = "2.5.3",
    src = c(file=system.file("www/core-js/", package="reactR")),
    script = "shim.min.js"
  )
}

In my case, the vulnerabilities arise when using the reactable package, which depends on reactR.

Would it be possible to update this dependency to core-js 3.x? If it's not strictly necessary anymore, removing it might be an option, though I’m not sure if that’s viable.

Thanks for your work on this package!