jQuery sometimes escapes the first chevron when included in head tag

[hedi31]

hi,
I'm using wordpress 3.9.2 which include jQuery 1.11.0 on head tag.
My theme use scripts (included in function.php with wp_enqueue_script) which depends on jquery, so wordpress load jquery on head.
When we refresh the page (in chrome source code ciewer), sometimes, the first opening chevron on the included jquery library is missing.

it output :

script type='text/javascript' src='http://nolook.fr/wp-includes/js/jquery/jquery.js?ver=1.11.0'></script>

instead of :

<script type='text/javascript' src='http://nolook.fr/wp-includes/js/jquery/jquery.js?ver=1.11.0'></script>

I've made a video to show the bug : ​https://www.youtube.com/watch?v=aUuTE-TEVAc

please also see the image in attachment

[hedi31]

missing first chevron on jquery included library

[SergeyBiryukov]

Does it still happen with all plugins disabled and a default theme (Twenty Fourteen or Twenty Thirteen) activated?

[hedi31]

Ok thank you and sorry, it comes from a plugin : ​https://wordpress.org/plugins/ultimate-wp-query-search-filter/

When I disable this plugin, it doesn't happen anymore.