The tag 'FORM [method=GET]' requires including the 'amp-form' extension JavaScript.

[abrambailey]

I'm seeing this error being generated on my site.

The tag 'FORM [method=GET]' requires including the 'amp-form' extension JavaScript.

This is from the generated amp html:

<form action="[removed]" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate=""> </form>

[westonruter]

Where is the form coming from? Is it in the post content or is it somewhere else? Is it coming from a shortcode?

[abrambailey]

This comes from the following raw html on a page.

  <form action="[removed]" class="validate" id="mc-embedded-subscribe-form" method="post" name="mc-embedded-subscribe-form" novalidate="" target="_blank">
    <div class="input-group" id="mc_embed_signup_scroll">
      <input class="email form-control" id="mce-EMAIL" name="EMAIL" placeholder="email address" required="" type="email" value="">
      <div>
        <input name="[removed]" tabindex="-1" type="text" value="">
      </div>
      <span class="input-group-btn">
        <input class="button btn btn-info" id="mc-embedded-subscribe" name="subscribe" type="submit" value="Subscribe">
      </span>
    </div>
  </form>

[abrambailey]

@westonruter Is there a class name that I can apply to this form's containing div to have it ignored for the amp version? Like class="hide_in_amp" or something?

[brianlayman]

For now, you could add the amp-form extension through a function hooked to the action 'amp_post_template_head', checking for that specific page.

[westonruter]

For forms that are added to to the v0.6 paired mode templates, adding the amp-form component script needs to be done via the amp_post_template_data filter as can be seen being done for analytics:

https://github.com/Automattic/amp-wp/blob/216ec376ab5bc698e03a149e6e68fa771cffd2d0/includes/amp-post-template-actions.php#L20

https://github.com/Automattic/amp-wp/blob/216ec376ab5bc698e03a149e6e68fa771cffd2d0/includes/amp-post-template-actions.php#L120-L131

Otherwise, for forms that are added to the content or for forms that are added to templates in themes that have amp support (new in 0.7-alpha in develop), then merely adding a <form> to the response will cause the AMP component script to automatically be included.

See #907 and #875.