browser_dom: Execute JavaScript on an HTML page via a headless browser and...
In xfun: Supporting Functions for Packages Maintained by 'Yihui Xie'

browser_dom

R Documentation

Execute JavaScript on an HTML page via a headless browser and dump the DOM

Description

Load an HTML page in a headless browser (Chromium/Chrome/Edge), execute all JavaScript on it, and return (or save) the rendered DOM as HTML.

Usage

browser_dom(input, output = NULL, fragment = FALSE, browser = NULL)

Arguments

`input`	Path or URL to the HTML page.
`output`	An optional output file path. If not provided, the rendered HTML is returned as a character string.
`fragment`	Whether to return only the inner body content instead of the full HTML document.
`browser`	Path to the web browser. By default, the browser is found via `xfun:::find_browser()`. If it cannot be found, you may set the global option `options(xfun.browser = )` or environment variable `R_XFUN_BROWSER` to the path of the browser, or simply pass the path to the `browser` argument.

Value

If output is NULL, the rendered HTML as a character string; otherwise the output path (invisibly).

Examples


f = tempfile(fileext = '.html')
writeLines(c(
  '<html><body><div id="out"></div>',
  '<script>document.getElementById("out").textContent = "hello";</script>',
  '</body></html>'
), f)
xfun::browser_dom(f)

xfun documentation built on July 9, 2026, 5:08 p.m.