FreeCodeCamp ― Test Does Not Recognize Correct Solution

This bug report discusses a code challenge on FreeCodeCamp.org that does not appear to be working correctly. When submitting the clearly expected answer the site rejects this answer and does not credit the user for a correct response.

The bug does not impact use of other challenges on the site, but prevents a user from fully completing one section of the free curriculum. This occurred using the Google Chrome browser on several devices. Other browsers were not tried.

Project Information

• Repository:
  https://github.com/freeCodeCamp/freeCodeCamp
• Project Name:
  freeCodeCamp
• Publisher (if applicable): Free Code Camp , a non-profit organization founded by Quincy Larson

This issue was reported on the project owners repository here.
UPDATE: While doing a second pass of due diligence in the project's backlog I found this issue which raises the same behavior. However, the proposed solution did not work for me so I decided to go ahead and share what I already learned and had written up in the hopes that increased visibility might lead to an improved solution.

I understand that may make this post ineligible or lower quality as a Utopian contribution. That's a secondary concern. I'm hopeful that the information still proves useful to the project itself.

Expected behavior

When a correct solution to the exercise is entered in the code pane all the tests pass and the site acknowledges that the lesson is complete.

The instructions for this lesson read "[a]dd a height property to the h4 tag and set it to 25px." Thus the following code should pass. But does not.

<style>
  h4 {
    text-align: center;
    height: 25px;
  }
  p {
    text-align: justify;
  }
  .links {
    margin-right: 20px;
    text-align: left;
  }
  .fullCard {
    width: 245px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin: 10px 5px;
    padding: 4px;
  }
  .cardContent {
    padding: 10px;
  }
</style>
<div class="fullCard">
  <div class="cardContent">
    <h4>Google</h4>
    <div class="cardText">
      <p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
    </div>
    <div class="cardLinks">
      <a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
      <a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
    </div>
  </div>
</div>

Actual behavior

When the code above is tested, the lesson unit tests fail and report as follows:

// running tests
Your code should change the h4 height property to a value of 25 pixels.
// tests completed

First impression investigation of cause

It may be that the default user-agent style sheet is slightly modifying the final computed height value of the applicable element, causing the causing the actual height not to match the expected `height in the following described test.

freeCodeCamp/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/adjust-the-height-of-an-element-using-the-height-property.english.md

tests:
  - text: Your code should change the <code>h4</code> <code>height</code> property to a value of 25 pixels.
    testString: assert($('h4').css('height') == '25px', 'Your code should change the <code>h4</code> <code>height</code> property to a value of 25 pixels.');

On inspection the computed value does come close to 25px. But it is not exact:

How to reproduce

Operating system: Chrome OS v. 70.0.3538.110

1. Navigate to https://learn.freecodecamp.org/responsive-web-design/applied-visual-design/adjust-the-height-of-an-element-using-the-height-property
2. On line 4 of the code pane modify the h4 style by inserting height: 25px;
3. Click the 'Run the Tests' button or press CTRL + ENTER to run the tests
4. The tests should pass but don't.

Recording Of The Bug

_{Link to full video: https://www.useloom.com/share/4895543830444027b427f067e76c6d1c}

_{Inset view of code change}

GitHub Account

https://github.com/tdreid