Backport #26510 by @wxiaoguang
The editor usually is in a form, so the buttons should have
"type=button", avoid conflicting with the form's submit.
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
for (const el of this.textareaMarkdownToolbar.querySelectorAll('.markdown-toolbar-button')) {
// upstream bug: The role code is never executed in base MarkdownButtonElement https://github.com/github/markdown-toolbar-element/issues/70
el.setAttribute('role', 'button');
+ // the editor usually is in a form, so the buttons should have "type=button", avoiding conflicting with the form's submit.
+ if (el.nodeName === 'BUTTON' && !el.getAttribute('type')) el.setAttribute('type', 'button');
}
const monospaceButton = this.container.querySelector('.markdown-switch-monospace');