browser_dom {xfun}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)
[Package xfun version 0.61 Index]