Business
Jobs
  • About Us
  • Solutions
    • Job Postings
      Post your job and receive qualified candidates in 48h.
    • Candidate Assessments
      500+ technical and psychological tests, plus anti-fraud.
    • Headhunting
      Tailor-made executive search from start to finish.
    • Payroll + EOR
      Payroll dispersal and EOR across 15+ LATAM countries.
  • Pricing
  • Jobs

0

135
Views
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'value') on Mac OS

I am attempting to write custom HTML to SweetAlert2, the code I am attempting to make has the user input a bot name then submit it to our API.

The code works fine on Windows, however when I do this on Chrome MacOS I get the error Uncaught (in promise) TypeError: Cannot read properties of null (reading 'value'). The placeholder also does not register on MacOS, this all works fine on Chrome Windows though. Image of the placeholder not registering. Submission Error

I believe it has to do with the HTML not registering on Chrome Mac because I took a look within the developer console and found it to not be showing the placeholder or ID at all. Developer Console Image

Original HTML:

<a class="button w-button is-link is-light" style="min-height: 0px;border-width: 1px;cursor: pointer;justify-content: center;padding-bottom: .5em;padding-left: 2em;padding-right: 2em;padding-top: calc(.6em - 2px);text-align: center;white-space: nowrap;" target="_blank" id="change-name">Change Bot Name</a>

Sweetalert JS:

// Update Bot Name:
$(function() {
  $('#change-name').click(function() {
      Swal.fire({
          html: `<br><b>Update Bot Name</b><br><input type="text" id="newbotname" class="swal2-input" placeholder="Enter the new name for your bot.">`,
          confirmButtonText: 'Update',
          showCancelButton: true,
          focusConfirm: false,
          allowOutsideClick: false,
          reverseButtons: true,
          preConfirm: () => {
            const NewBotName = Swal.getPopup().querySelector('#newbotname').value
            if (!NewBotName) {
              Swal.showValidationMessage(`Please ensure that you have entered a new bot name!`)
            }
            return { NewBotName: NewBotName }
          }
        }).then((result) => {
          $.post("/service/bots/general/update/name",
          {
            NewBotName: `${result.value.NewBotName}`
          },
          function(data, status){
            if (data.success == true) {
              Swal.fire(
                'Updated!',
                'Your bot name has been updated.',
                'success'
              )
            } else {
              Swal.fire(
                'Oops!',
                'There was an error updating your bot name.',
                'error'
              )
            }
          });
          
      })
  })
});

I tried reading up on other answers about this but could not find one that resolves this, especially it not rendering the HTML properly such as the placeholder.

about 4 years ago · Juan Pablo Isaza
1 answers
Answer question

0

Update: this was the issue in v11.3.2, please upgrade to v11.3.3.


The problem with your code is that you're trying to imitate manually the build-in functionality with input.

Instead of doing this

Swal.fire({
  html: `<br><b>Update Bot Name</b><br><input type="text" id="newbotname" class="swal2-input" placeholder="Enter the new name for your bot.">`,
  preConfirm: () => {
    const NewBotName = Swal.getPopup().querySelector('#newbotname').value
    if (!NewBotName) {
      ...         
})

Do what the documentation suggests you:

Swal.fire({
  title: 'Update Bot Name',
  input: 'text',
  inputPlaceholder: 'Enter the new name for your bot'
  preConfirm: (NewBotName) => {
    if (!NewBotName) {    
      ...      
})
about 4 years ago · Juan Pablo Isaza Report
Answer question
Find remote jobs

Discover the new way to find a job!

Top jobs
Top job categories
Business
Post vacancy Pricing Sales
Legal
Terms and conditions Privacy policy
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Show me some job opportunities
There's an error!