Function rewriteCssUrls

packages/vite/src/node/plugins/css.ts:2087–2095

(
  css: string,
  replacer: CssUrlReplacer,
)

UrlRewritePostcssPlugin.postcss = true

function rewriteCssUrls(
  css: string,
  replacer: CssUrlReplacer,
): Promise<string> {
  return asyncReplace(css, cssUrlRE, async (match) => {
    const [matched, rawUrl] = match
    return await doUrlReplace(rawUrl.trim(), matched, replacer)
  })
}

function rewriteCssDataUris(
  css: string,