I'm using FormSubmit to create a contact form in my static website (hosted on a server).
My form looks like this:
<div id="contact-area" class="container">
<h1>~$ contactme</h1>
<br>
<form action="https://formsubmit.co/c379c266434ca1a039bdf03209919395" method="POST">
<div class="form-group">
<div class="form-row">
<div class="col">
<input type="text" name="name" class="form-control" placeholder="Your name..." required>
</div>
<div class="col">
<input type="email" name="email" class="form-control" placeholder="Your e-mail" required>
</div>
</div>
</div>
<div class="form-group">
<textarea maxlength="1000" placeholder="Your message..." class="form-control" name="message" rows="10" required></textarea>
</div>
<input type="hidden" name="_template" value="table">
<input type="text" name="_honey" style="display:none">
<input type="hidden" name="_captcha" value="false">
<input type="hidden" name="_next" value="message_sent.html">
<button type="submit" class="btn btn-lg btn-dark btn-block">Submit</button>
</form>
</div>
My email is verified. When the user clicks on submit button, this message appears in a new page:
" Make sure your form has the method="POST" attribute "
However, I receive the message. That's weird. Anyone know why it says my form should have POST attribute while my form actually has the post attribute.
Your code snippet is all okay. I have tested it, forms are getting submitted, and nothing wrong except the way you implement the "_next" feature. As FormSubmit documentation clearly mentioned you have to provide an alternative URL not just a path or file, it should be a URL.
<input type="hidden" name="_next" value="https://yourdomain.co/thanks.html">
Please change the hidden filed in your form to:
<input type="hidden" name="_next" value="https://yourdomain.co/message_sent.html">
and that should probably work fine.
Additional information:
FormSubmit documentation: https://formsubmit.co/documentation