How To Find and Fix Ajax Errors using the Network Tab
Tags: javascript, php, tutorial, tooling
Published: 2022-05-31 12:48:47

**Introduction**

![A sample, of Code. wanting. to show Ajax code](https://paper-attachments.dropbox.com/s_0E0CF4E244222A81CE17B66C107378C1BE2EE57DAB0BFDC71B7BA6B103D71317_1653992033497_pexels-pixabay-276452.jpg)


As time passed, the usage of various programming methods grew increasingly important in making software creation much easier.
Ajax is one such technique.

Your software products will have a great user experience thanks to the Ajax software development process.
So Ignoring Ajax as a developer is terrible for business, especially if you want to work in a tech company. Trust me, you don't want to be in a situation where you can't send and retrieve data from a server asynchronously.
If you develop a complete website without Ajax, you'll end up using too many other tools, which can be time-consuming.

This guide will lead you through several fundamental Ajax concepts as well as how to identify and resolve errors.
If you're ready, let's get started with this instruction... 

**What precisely is Ajax?**

Ajax is an abbreviation for "Asynchronous JavaScript And XML," and it refers to a set of client-side web development approaches.
Ajax allows web applications to asynchronously (in the background) transmit and receive data from a server without interfering with the appearance or operation of the existing page.
You will then implement using XML.
In fact, the bulk of modern implementations use JSON rather than XML.
 
**Definition of Ajax Error**

Ajax error is a typo or misinterpretation in a line of Ajax code.
Now I'd want to inform you that Ajax operates totally on the server, therefore many pages make Ajax requests to the server.
And this is dependent on the server's cooperation as well as the network between the client and the server.

For example, you may get the following problem on your developer console: 

![Trying to show an Ajax Error](https://paper-attachments.dropbox.com/s_0E0CF4E244222A81CE17B66C107378C1BE2EE57DAB0BFDC71B7BA6B103D71317_1653997976788_Screenshot+131.png)


“**Your JavaScript program receive an error response instead of data; “This page does not exist.**”
 
**What does Ajax Error Looks like**
There are different types of error in Ajax and it also depends on how you’re using it. If you’re using it with PHP, the error will be entirely different if you’re using it in JavaScript. And in this case it doesn’t depend on the programming language you’re using, but it depend on what you want to achieve with the Ajax in combination with the programming language you’re using. Your error while using Ajax may be different from mine but I want to show you what an Ajax error looks like, so when you see it you could identify it. So if you run this code from your .Js file.

```
    $.ajax({
      type: "post",
      data: {id: 0},
      cache: false,
      url: "doIt.php",
      dataType: "text",
      error: function(request, error) {
        console.log(arguments);
        alert(" Can't do because: " + error);
      },
      success: function() {
        alert(" Done!");
      }
    });

```
      

 
Head to the interface and refresh you will see and error message on your console like this.

![Trying to show an Ajax Error](https://paper-attachments.dropbox.com/s_0E0CF4E244222A81CE17B66C107378C1BE2EE57DAB0BFDC71B7BA6B103D71317_1653988671592_image.png)


 
 
If you want to find and fix that error you will go to the network tab and you will see an error like this.
 

![Trying to show an Error Tab](https://paper-attachments.dropbox.com/s_0E0CF4E244222A81CE17B66C107378C1BE2EE57DAB0BFDC71B7BA6B103D71317_1653988663215_image.png)


**What is Network Tab**
The network tab is located in the developer tool of your browser. And the network views allows you to see and analyze the network that makes up each individual page load within a single user session. You can use this view to identify the causes of slow pages and identify performance bugs.
 
**How can you use Network Tab to find and fix Ajax Error**
Now this brings us to the final discussion of this article, I will be explaining this section with an image diagram. Now most browser has a network tab, the way to locate this is to go to settings look for **more tools then click on developer tools**. Below is an example
 

![image by https://www.deskpro.com/](https://paper-attachments.dropbox.com/s_0E0CF4E244222A81CE17B66C107378C1BE2EE57DAB0BFDC71B7BA6B103D71317_1653988632671_image.png)



Then you’ll see so many tab, click on the network tab. Click on the XHR button.
Then you’ll see the ajax request. The Deskpro agent has probably told you some steps to take and a particular request to look for. Click on an individual request to see the request details, which you should copy and send to Deskpro.

![image by https://www.deskpro.com/](https://paper-attachments.dropbox.com/s_0E0CF4E244222A81CE17B66C107378C1BE2EE57DAB0BFDC71B7BA6B103D71317_1653988601291_image.png)


 

##
## **Conclusion**

We have come to the conclusion of this tutorial, hopefully, you’ve gained a ton of values.
Understanding how to find and fix Ajax errors is a vital skill you should have in your arsenal as a developer. 

From now on, you won’t think twice of being able to find and fix your errors using network tab. So you must be ready to fix your bugs as a web developer using Network Tab.

If you need help with an Ajax Project, feel free to consult me through my website.
Till next time, enjoy!

## **About Author**

**Emmanuel Okolie** has been crushing codes since 2020. Over the years, he has grown full-blown skills in JavaScript, PHP, HTML & CSS and more.

He is currently freelancing, building websites for clients, and writing technical tutorials teaching others how to do what he does.

**Emmanuel Okolie** is open and available to hear from you. You can reach him on [Linked-In](https://www.linkedin.com/in/emmanuel-okolie-435588238/), [Facebook](https://facebook.com/Emmykolic/), [Github](https://github.com/emmykolic), [Twitter](https://twitter.com/emmykolic), or on his [website](https://emmykolic.github.io).