Issue search is broken and breaks Epiphany

Proyecto:Web
Componente:Main
Categoría:informe de fallo
Prioridad:blocking
Asignado:No asignado
Estado:active
Descripción

In the "Issues" screen, the search form requires the "Project" field. I recall that in the past this field was filled through a dropdown box (as it still is in the "Create new issue" form), but now it is a text box with a self-complete javascript function. This function fails, prompting an error dialog and making issue search impossible. Moreover, in Epiphany this dialog makes the browser to become zombie and to require to be killed.

The error shown in the error dialog is the following:
An error occurred.
https://trisquel.info/?q=gl/project/autocomplete/issue/project
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="gl" xml:lang="gl">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="content-language" content="gl" />
<title>Trisquel GNU/Linux - ¡Vai por libre!</title>
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="alternate" type="application/rss+xml" title="Trisquel GNU/Linux RSS" href="https://trisquel.info/gl/node/feed" />
<link rel="shortcut icon" href="/sites/default/themes/trisquel7/favicon.ico" type="image/x-icon" />
<link type="text/css" rel="stylesheet" media="all" href="/files/advagg_css/css_544c09bf341c8496f75d29574d3b7c6e_47.css" />
<script type="text/javascript">
/** @licstart The following is the entire license notice for the
* JavaScript code in this page
*
* Copyright (C) 2008-2021 The Trisquel Project
*
* The JavaScript code in this page is free software: you can
* redistribute it and/or modify it under the terms of the GNU
* General Public License (GNU GPL) as published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version. The code is distributed WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
*
* As additional permission under GNU GPL version 3 section 7, you
* may distribute non-source (e.g., minimized or compacted) forms of
* that code without the copy of the GNU GPL normally required by
* section 4, provided you include this license notice and a URL
* through which recipients can access the Corresponding Source.
*
* @licend The above is the entire license notice
* for the JavaScript code in this page.
*/
</script>
<script type="text/javascript" src="/files/advagg_js/js_37db2c6a2a23b0fc94bf3f7393161dba_0.js"></script>
<script type="text/javascript">
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<meta name="description" content="Trisquel GNU/Linux is a fully free operating system for home users, small enterprises and educational centers." />
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<input type="hidden" name="form_build_id" id="form-pIQQEmmnZqrOzmqJFkSKZfGBc5z-zWftbLXRepuLA34" value="form-pIQQEmmnZqrOzmqJFkSKZfGBc5z-zWftbLXRepuLA34" />
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