Button onClick event does not work but works just fine when I display the Inspect mode in Chrome-CodePudding

The onClick event on the referesh button for the Captcha won't work when I click it, but this button works well when I open the Inspect mode in Chrome and click it, refreshing the captcha as expected. Here is my HTML code :

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" integrity="sha384-xOolHFLEh07PJGoPkLv1IbcEPTNtaed2xpHsD9ESMhqIYd0nLMwNLD69Npy4HI N" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C OGpamoFVy38MVBnE IbbVYUew OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-Fy6S3B9q64WdZWQUiU q4/2Lc9npb8tCaSX9FK7E8HnRr0Jz8D6OP9dO5Vg3Q9ct" crossorigin="anonymous"></script>
<div >
  <input type="text" id="captchaText"  name="captcha" data-validation="required" data-validation-error-msg="<s:text name='error.required'/>">
  <label for="captchaText">
        <s:text name="index.captcha" />
    </label>
  <div >
    <button type="button"  onclick="document.getElementById('imageCaptcha').src='https://i.stack.imgur.com/SO2KY.png'">Rafraîchir  &nbsp
            <i  ></i>
        </button>
    <div style="padding:6px; padding-right:0px;" >
      <img id="imageCaptcha" src="https://i.stack.imgur.com/SO2KY.png"></div>
  </div>
</div>

Here is a screenshot of my UI :

What could be the problem in my case ?

CodePudding user response：

The issue was due to Chrome and Firefox loading the captcha from Cache in the same tab, even if response header Cache-Control was set to no-cache. The solution was to add a random string parameter to the request, this forces Chrome to reload the captcha as it will see each time a new URL for the src attribute of the image. Something like this :

function captchaReload() {
        let randomString = (Math.random()   1).toString(36).substring(7);
        let imageSource = 'Captcha.jpg'  '?random='   randomString;
        document.getElementById('imageCaptcha').src=imageSource;
    }

See this SO question for more details on this browser behaviour.