<h1>phpMyAdmin - Error</h1>
<p>export.php: Missing parameter: export_type<a href="./doc/html/faq.html#faqmissingparameters" target="documentation"><img src="themes/dot.gif" title="Documentation" alt="Documentation" class="icon ic_b_help" /></a><br /></p>
export.php: Missing parameter: export_type
After days of googling and bunch of headaches, finally I figured it out.
I tried to use my browser's (Google Chrome 47.0.x.x) console to see If there is something wrong with it and I noticed this warning there:
Resource interpreted as Document but transferred with MIME type text/x-sql
Then I tried disable my browser's extensions one-by-one where I found this extension was the cause:
Free Download Manager Chrome extension (1.0.23)
I disabled it and now everything is fine.