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有這個網站:的XPath匹配不適合meta標籤工作
<!DOCTYPE html>
<html>
<head>
<meta content="my id" property="fb:app_id" />
<meta content="app name" property="og:site_name" />
<meta content="social post" property="og:type" />
<meta content="bsa" property="og:title" />
<meta content="bsa" property="og:description" />
<meta content="http://will-ferrell.lvh.me:3000/" property="og:url" />
</head>
</html>
試圖做到這一點:
expect(page).to have_selector :xpath, '//head/meta[@property="fb:app_id"]'
expect(page).to have_selector :xpath, '//head/meta[@property="og:site_name"]'
expect(page).to have_selector :xpath, '//head/meta[@property="og:type"]'
expect(page).to have_selector :xpath, '//head/meta[@property="og:title"]'
expect(page).to have_selector :xpath, '//head/meta[@property="og:description"]'
expect(page).to have_selector :xpath, '//head/meta[@property="og:url"]'
而且這是行不通的。說它找不到選擇器。 任何想法爲什麼?
我不知道我很明白你正在使用,以解析HTML的庫。 – olyv