#615 – Route 66 deletes self referential hreflang tag

Hi !

When the plugin is activated and the languagefilter plugin is activated the lines
<link href="https://www.xxx.com/en/" rel="alternate" hreflang="en-EN" />
<link href="https://www.xxx.com/de/" rel="alternate" hreflang="de-DE" />
<link href="https://www.xxx.com/pl/" rel="alternate" hreflang="pl-PL" />

will read

<link href="https://www.xxx.com/de/" rel="alternate" hreflang="de-DE" />
<link href="https://www.xxx.com/pl/" rel="alternate" hreflang="pl-PL" />
<link href="https://www.xxx.com/en/" rel="canonical" />

so

<link href="https://www.xxx.com/en/" rel="alternate" hreflang="en-EN" />

gets deleted.

Correct behaviour would be

<link href="https://www.xxx.com/en/" rel="alternate" hreflang="en-EN" />
<link href="https://www.xxx.com/de/" rel="alternate" hreflang="de-DE" />
<link href="https://www.xxx.com/pl/" rel="alternate" hreflang="pl-PL" />
<link href="https://www.xxx.com/en/" rel="canonical" />

in the header.

Hi Thomas,

Route 66 does nothing with the alternate links. Are you sure it's Route 66 that does that? Thank you for reporting this.

Regards

Yes, the error/deletion goes away when disabling the plugin. I haven't looked enough into this , but i think the addheadlink funtion just takes one line per URL and deletes other entries if multiple calls are made. i hacked into languagefilter.php
$doc->addHeadLink($server .'/' . $languages[$this-&gt;current_lang]->sef.'/' , 'alternate', 'rel', array('hreflang' => $this->current_lang));
-> gets also deleted
$doc->addCustomTag('<link href="' . $server . '/'.$languages[$this-&gt;current_lang]->sef.'/' . '" rel="alternate" hreflang="'.$this->current_lang.'" />');
-> stays
If I would guess you need to call addCustomTag instead of addHeadlink for the canonical tag ?

Language filter is a core plugin. I recommend to revert your changes. If you believe that it has an issue then you should report this to https://github.com/joomla/joomla-cms/issues.
I don't see how this is related with Route 66. Can you please verify that everything works fine when Route 66 system plugin is disabled?

Thank you for the feedback.

Regards