Hi, same problem here, hope they’ll find a solution.
I’ll use a bit of JavaScript instead
I had this problem also, it happened when I tried to activate from the same screen when you install from your dashboard.
The fix for me was to install the plugin, and after I got the message, I went to the plugins page and clicked Activate
Working for me fine now, but I hope this does get fixed!
PS copied from – https://ww.wp.xz.cn/support/topic/the-plugin-does-not-have-a-valid-header-150/ @mchelles
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This reply was modified 5 years, 8 months ago by
anuzpuri.
FYI if you need the link to open on a new window
CF7 File Download > classes > class-cf7-file-download.php > Line 165
jQuery('body').append('<a target="_blank" id="cf7fd-attachment-link" href="<?php echo $catalog_url;?>" download="<?php echo $filename;?>"></a>');
Hello,
The proper header issue is now fixed on 2.0. Also the new version has multi contact form support.
Thanks