I am working on a tool for generating html files. The code is fairly simple. A user clicks a post button and the content from a textarea is sent to an endpoint. I have tried posting the html as a json string. Expected The saveContent method is called. The value from the textarea element is concatenated into a string. This
Tag: xmlhttprequest
.send(formData) Error “GET 404 …/upload.php (Not Found)”
i’ve found this code on a website for uploading files using javascript, but it doesn’t seems to work. Could somebody help me with that please? Index.php : And js : and upload.php : And now this issue : GET …/upload.php 404 (Not Found) and related code to issue : btw what is that “GET” showing in console?? Answer I just
Get a response in chunks from express in browser
I’m building a progress bar for some long-running server-side tasks (up to a few minutes), and I’d like a way to display the progress of the task. I could use WebSockets or poll on intervals, but I don’t want to keep track of each task. Instead, I’d like to use long-polling and write progress updates to the stream. Here is
Why is php POST array empty for me in one instance and populated in another, both using XHR POST?
I am trying to write code that will check if username is already used, and I wrote some test code where my php $_POST array was populated. However, I modified the test code slightly for the ‘production’ code I am developing, and my $_POST array is empty. My first set of code, that is working, html file is First set
JS style-changes don’t get applied when inside request
I want to make it such that an image on a website gets its “onclick” event disabled and a gray filter applied, if a certain file on the same domain is not found. I want to use purely JS and have tried this so far: I have the image initialized and displayed. Thus image.onclick = “” and image.style.filter = “grayscale(100%)
How to make AJAX request in Hackerrank using JavaScript?
I open the Hackerrank example test and play around with methods one might use to make an AJAX call. XMLHttpReq, fetch, etc. None of them work; XHR and fetch methods are unavailable. First fetch: Hackerrank throws an error because fetch is not a function. I also tried window.fetch and global.fetch to no avail. I tried XHR: Hackerrank says XMLHttpRequest is
Can’t make new fetch request after aborting previous
I need to change a parameters that defines what data should come from my requests, also this application needs to refresh on a regular time interval. If the user changes the parameter in the middle of an unfinished request things start to behave strange and some unexpected behavior occurs. So my approach was to abort all previous requests before starting
Axios change http to https
I have server that accept only http (no https). And when I call an api, axios automatically change http to https. I create axios instance here: But in browser http changes to https, so it become: https://xxx.xxx.xxx/api/v1/all and I get net::ERR_NAME_NOT_RESOLVED How can I prevent that? UPDATE Request Header: and there is no response header. and now I get net::ERR_SSL_PROTOCOL_ERROR
Is it possible to add a request header to a CORS preflight request?
I have a website that accesses an API from an external server (not the server that serves the website) via a plain XmlHttpRequest (see below). That API requires an API key for accessing the service to be added as request header. However, as these are CORS requests the browser first does a preflight request to check if that server supports
Where to place async/await in this case?
EDIT: The problem was not the placement of the async/await per se, but the fact that I was trying to make a constructor asynchronous. I have looked through docs, read other questions and answers, but I still can’t get my head wrapped around what function to make async, and where to place the await, to get the behaviour that I