透過JS跨網域存取XML檔
為了一些安全性的因素，通常伺服器會阻擋跨網域的XML存取，當然如果你是該網站開發者，所開發的頁面應該將會被放在被認可的網域中，不會碰到這個問題，但我們在開發前期有可能會不在所屬的網域，這樣就會造成開發上的困難，不過我們可以透過Yahoo所提供的YQL查詢語法來解決這個問題，以下就是相關的說明：
若我們在自己的電腦用以下的語法去存取一個網路上的XML
<script>
$(function () {
var xmlSource = "http://stanley.cloudlab.tw/crossDomainXML/testXML.xml";
$.ajax({
url: xmlSource,
success: function (data) {
console.log(data);
}
})
})
</script>
很可能會出現「No Access Control Allow Origin」的訊息：
但如果套用上YQL之後
<script>
$(function(){
var xmlSource = "http://stanley.cloudlab.tw/crossDomainXML/testXML.xml";
var yqlURL = [
"http://query.yahooapis.com/v1/public/yql",
"?q=" + encodeURIComponent("select * from xml where url='" + xmlSource + "'"),
"&format=xml&callback=?"
].join("");
$.getJSON(yqlURL, function(data){
console.log(data)
});
})
</script>
可以看到已經可以抓到XML內容，這樣可以讓我們較為方便的去開發，其他詳細的使用說明可以參考Yahoo YQL Guide。
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Carrie Underwood slated to perform at Trump’s inauguration
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Country music star Carrie Underwood is slated to perform “America the Beautiful” at President-elect Donald Trump’s inauguration, according to a copy of the program obtained by CNN and confirmed by a spokesperson for the inaugural committee.
“I love our country and am honored to have been asked to sing at the Inauguration and to be a small part of this historic event,” Underwood said in a statement to CNN. “I am humbled to answer the call at a time when we must all come together in the spirit of unity and looking to the future.”
The presidential oath of office will be administered by Supreme Court Chief Justice John Roberts with Justice Brett Kavanaugh expected to administer the oath of office to Vice President-elect JD Vance.
Trump’s inauguration as the 47th president of the United States will take place on January 20 at the US Capitol.
Underwood is a big get for Trump’s inauguration, considering Hollywood’s Trump blackout over the course of his political career.
In his first term and throughout the past three elections, Trump has struggled to garner support from major Hollywood stars. At the Republican National Convention last year, the two biggest stars onstage with Trump were musician Kid Rock and retired WWE wrestler Hulk Hogan – a far cry from a superstar at the height of their career, like Underwood.
The Grammy-winning artist is as high-profile as you can get in country music, not only with numerous platinum hits, but also with public-facing, mainstream business associations. Underwood is the face of Sunday Night Football and is set to make her debut this March as a judge on ABC’s “American Idol” – the singing competition show that catapulted her to fame when she won in 2005.
While many NFL fans will likely applaud Underwood for singing at the inauguration, any time a celebrity aligns themselves with Trump, they run the risk of alienating left-leaning fans and Hollywood allies.
Underwood has kept her politics under wraps over the course of her career. In her statement, she did not mention Trump by name and kept her focus on unifying the country – still, Underwood’s decision to publicly align with Trump is a big statement for any star, particularly one as private as the singer.
Historically, Hollywood has always been closely associated with the Democratic Party, but country stars have always been an outlier, leaning more conservative. In recent years, as new singers join the genre, country music has gotten to be more progressive. This past election cycle, country stars like Mickey Guyton and Maren Morris stood with Vice President Kamala Harris.
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