Solving "Cannot Read Property 'Code' of Undefined" Error on Twitter

When trying to embed or link a tweet within the code of a page, developers may come across the error message “Cannot read property 'code' of undefined”. Embedding and linking tweets is a great way to display content on a web page, so it’s important to figure out the source of this error message. We’re here to help!

Step-by-Step Solution

Verify that you have included the Twitter widgets.js file correctly
The widgets.js file is necessary to apply tweet embedding into the code of a page. Before trying to embed a particular tweet, double-check to make sure that the file has been inserted correctly.

Test to see if the tweet has the proper syntax and is the most current version of the tweet
In some cases, the error message is caused by improper syntax, formatting, or inclusion of old, cached version of the tweet. Make sure to test the tweet by inserting the URL directly into the text of the page to make sure that the current version of the tweet is being inserted.

Make sure that you are testing in an environment that Twitter is compatible with

When testing the tweet, make sure that it’s in an environment that Twitter is compatible with, such as a full web page, HTML file, JavaScript file, etc. Twitter widgets will not work in any other environment for the page, so testing the page in-browser is important.

  1. Check the JavaScript console to check for any errors
    In some cases, the error message may be surfaced in the JavaScript console. Make sure to check the console for any errors that may be related to the problem at hand.

FAQ

What type of file is necessary to embed a tweet?

The necessary file to insert a tweet into a page's code is the Twitter widgets.js file. This file holds the necessary resources needed to embed a tweet.

Will tweets work in every environment?

No. For the tweet to be properly embedded, it must be tested in an environment that Twitter widgets is compatible with, such as a web page, HTML file, JavaScript file, etc. Otherwise, the tweet will not be embedded properly.

How can I determine if the tweet I'm trying to embed is the most recent?

To make sure that the tweet being inserted is in its most recent and accurate form, it's important to test the URL of the tweet directly into the text. This will ensure that the most up-to-date version of the tweet is being embedded.

Why can't I read the 'code' of the tweet?

If you're having trouble reading the 'code' of the tweet, there may be a few possible reasons. Make sure to check the JavaScript console for any errors, verify that the Twitter widget.js has been added correctly, and make sure that any changes to the tweet have been tested in an environment that Twitter is compatible with.

How can I fix the 'Cannot read property 'code' of undefined' error?

In order to fix the "Cannot Read Property 'code' of Undefined" error, developers should first verify that the Twitter widgets.js file has been correctly included in the page. Additionally, make sure to test the tweet by inserting the URL directly into the text of the page to make sure that the current version of the tweet is being inserted. Lastly, make sure that the tweet is being tested in an environment that Twitter is compatible with.

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