Chrome does not support localhost for CORS requests (a bug opened in 2010, marked WontFix in 2014). To get around this you can use a domain like localho.st (which points at 127.0.0.1 just like localhost) or start chrome with the –disable-web-security flag (assuming you’re just testing).
You don’t. The server you are making the request to has to implement CORS to grant JavaScript from your website access. Your JavaScript can’t grant itself permission to access another website.
Actually php://input allows you to read raw request body. It is a less memory intensive alternative to $HTTP_RAW_POST_DATA and does not need any special php.ini directives. From Reference php://input is not available with enctype=”multipart/form-data”.
Origin null is the local file system, so that suggests that you’re loading the HTML page that does the load call via a file:/// URL (e.g., just double-clicking it in a local file browser or similar). Most browsers apply the Same Origin Policy to local files by disallowing even loading files from the same directory as the document. (It used to be that … Read more
status is 0 when your html file containing the script is opened in the browser via the file scheme. Make sure to place the files in your server (apache or tomcat whatever) and then open it via http protocol in the browser. (i.e. http://localhost/myfile.html) This is the solution.
I am trying to get the source code of HTML by using an XMLHttpRequest with a URL. How can I do that? I am new to programming and I am not too sure how can I do it without jQuery.
XMLHttpRequest is a built-in object in web browsers. It is not distributed with Node. The http module is the built-in tool for making HTTP requests from Node. Most people making HTTP requests from node use a third party library with a friendlier API. Two popular choices are Axios (for use both in Node.js and browsers) and node-fetch (which implements the fetch API … Read more
Sounds like the recommended way to do it is to have your server read the Origin header from the client, compare that to the list of domains you would like to allow, and if it matches, echo the value of the Origin header back to the client as the Access-Control-Allow-Origin header in the response. With .htaccess you can do it like … Read more
I would like to upload a file asynchronously with jQuery. Run code snippetExpand snippet Instead of the file being uploaded, I am only getting the filename. What can I do to fix this problem?
The code below demonstrates on how to do this. In case you have/create an object you can turn it into params using the following code, i.e: