I am building a chrome extension using Content Script.
I have a piece of code that injects DOM elements upon success of all ajax request on the page using jQuery. How can you recreate this without jQuery? Please note that I cannot modify any ajax requests on the page.
if(window.jQuery){
jQuery( document ).ajaxComplete(function( event, xhr, settings ) {
for(var i =0; i< $jq('div.handwave').length; i++){
if($($('div.handwave')[i]).children('.done').length < 1){
$(document).find('div.handwave').eq(i).append(wind);
}
}
});
}
Is this possible?
If you're writing a Chrome extension, you should probably use the chrome.webRequest
API. See https://developer.chrome.com/extensions/webRequest
You can override one of the existing methods required to make an AJAX request such as XMLHttpRequest.prototype.send
to add your own load event listener. For example
(function() {
const send = XMLHttpRequest.prototype.send
XMLHttpRequest.prototype.send = function() {
this.addEventListener('load', function() {
console.log('global handler', this.responseText)
// add your global handler here
})
return send.apply(this, arguments)
}
})()
As mentioned in the comments, this won't cover the fetch
API.
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