AngularJS http.jsonp can't find JSON_CALLBACK from custom PHP proxy response

Question

I'm trying to get a simple JSON reply from Readability, which works ok using the direct link to Readability's API, eg:

$http.jsonp('https://www.readability.com/api/content/v1/parser?url='+url+'&token='+token+'&callback=JSON_CALLBACK').success(function(data) { ... etc

But doesn't work when using my own "proxy":

<?php
    header('Content-Type: application/json');
    print file_get_contents('https://www.readability.com/api/content/v1/parser?url='.urlencode($_GET['url']).'&token='.$token.'&callback=JSON_CALLBACK');
?>

with:

$http.jsonp('parser.php?url='+url).success(function(data) { ...

I've also tried it with curl and duplicating all of the headers, etc. I don't get it, how come http.jsonp can't find the variable JSON_CALLBACK from my own proxy?

Answer 1

JSON_CALLBACK被调用时更换angular.callbackSomething和你的PHP使用硬编码JSON_CALLBACK所以当角度尝试运行callbackSomething没有从JSONP功能用这种方法，希望是有道理

print file_get_contents('https://www.readability.com/api/content/v1/parser?url='.urlencode($_GET['url']).'&token='.$token.'&callback='.$_GET['callback']);