Error XMLHttpRequest
51939
Javascript custom button stopped working, Synchronous XMLHttpRequest is deprecated
117968
Getting error: The content of element type "web-app" must match,
150314
How to send HTTP request in java?
121233
How to avoid hreflang return errors with URL that contain parameters
12902
JSONP request error handling
67603
TypeError: document.body is null
31683
How do I fix 'Invalid JSON' errors?
46439
How can I intercept XMLHttpRequests from a Greasemonkey script?
24859
Error parsing XHTML: The content of elements must consist of well-formed character data or markup
42356
How do I send a cross-domain POST request via JavaScript?
130442
Catching "Maximum request length exceeded"
79945
jQuery handle/hide expected Ajax 404 Error
97172
How to get the response of XMLHttpRequest?
145108
HTTP HEAD Request in Javascript/Ajax?
122270
Error: the question could not be loaded
6041
HTTP GET request in JavaScript?
54490
What's wrong with using $_REQUEST[]?