FAQ: Requests II - fetch() GET Requests IV


This community-built FAQ covers the “fetch() GET Requests IV” exercise from the lesson “Requests II”.

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This exercise can be found in the following Codecademy content:

Web Development

Introduction To JavaScript

FAQs on the exercise fetch() GET Requests IV

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I’ve followed all the steps and checked them thrice. But the code doesn’t work. There are no errors from the test. But, upon submitting the word request on the website panel, no response is printed.
Not even using the “Give me the solution option”


I did everything as asked also took the solution from the system but the code doesn’t work. Upon checking the web console, got “Cross-Origin Request Blocked:”. Can someone include this in the lesson and explain why it happens?


Hi @oepa_one and @amit.naik
I also completed the exercise but it did not display anything. I can explain the problem but unfortunately, the solution is a bit difficult to implement, especially if not done on your local server.

Anyway, if you inspect the page and check the web console the error is

Access to fetch at 'https://api.datamuse.com/words?sl=testing' 
from origin 'https://b012ad7f62763a67b7ad2e5e6683c681.geppetto.cc-propeller.cloud' 
has been blocked by CORS policy: 
The 'Access-Control-Allow-Origin' 
header has a value 'https://7b64062ce855345e8942f3157a8afcfa.geppetto.cc-propeller.cloud'
that is not equal to the supplied origin. 
Have the server send the header with a valid value, or, if an opaque response serves your needs,

> set the request's mode to 'no-cors'

If you check the 'https://7b64062ce855345e8942f3157a8afcfa.geppetto.cc-propeller.cloud' you will find that the server is replying with Internal Error

After some googling to see how to

set the request’s mode to ‘no-cors’

I have found this explanation which is a bit technical

Explanation of the underlying problem
So I was not able to solve the problem
Hopefully, someone @ Code academy will respond to the issue