Function getCssRuleBg

playground/test-utils.ts:133–145

(selector: string)

 * `getBg` returns the resolved value, which has the hostname and port prepended due to `computedStyle` call.
 */
export async function getCssRuleBg(selector: string): Promise<string> {
  return page.evaluate((sel) => {
    for (const sheet of document.styleSheets) {
      try {
        for (const rule of sheet.cssRules) {
          if (rule instanceof CSSStyleRule && rule.selectorText === sel) {
            return rule.style.backgroundImage
          }
        }
      } catch (_e) {}
    }
  }, selector)
}

export async function getBgColor(
  el: string | ElementHandle | Locator,