Google reject Tiki generated sitemap

• Regression
• Easy for Newbie Dev

Google complain (now?) that there is an issue with my sitemap /tiki-sitemap.php?file=sitemap-index.xml

======

Sitemap can be read, but has errors
Unsupported file format
1 instance

Your Sitemap does not appear to be in a supported format. Please ensure it meets our Sitemap guidelines and resubmit.

======

The file look like this : cat /home/domain/public_html/storage/public/sitemap-index.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by https://git.io/phpseo -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9”>
<sitemap><loc>https://www.domain.com/storage/public/articles.xml</loc><lastmod>2021-09-12T07:31:23+00:00</lastmod></sitemap>
<sitemap><loc>https://www.domain.com/storage/public/blogs.xml</loc><lastmod>2021-09-12T07:31:23+00:00</lastmod></sitemap>
<sitemap><loc>https://www.domain.com/storage/public/blogposts.xml</loc><lastmod>2021-09-12T07:31:23+00:00</lastmod></sitemap>
<sitemap><loc>https://www.domain.com/storage/public/sitemap.xml</loc><lastmod>2021-09-12T07:31:23+00:00</lastmod></sitemap>
</sitemapindex>

This file shows error with tools like: https://www.xml-sitemaps.com

XML Validation Results

error Problem detected, please check details below
Sitemap URL http://www.domain.com/tiki-sitemap.php?file=sitemap-index.xml
Character Set
Sitemap is valid No
Warnings -
Errors
Incorrect http header content-type: "text/html; charset=iso-8859-1" (expected: "application/xml")

(If I check https://www.domain.com/sitemap.xml it says it is ok)

Something turned wrong at some point OR Google changed the way it works ?

PS : As temporary mesure on my site I set in Google the sitemap to look for https://www.domain.com/sitemap.xml

===

Update 2021-12-06 after last Tiki23 upgrade:

When I look at the xml produced there : https://example.com/tiki-sitemap.php?file=sitemap-index.xml

I see this and it is rejected of course.

https://example.com/articles.xml2021-12-06T20:58:02+02:00https://example.com/sitemap.xml2021-12-06T20:58:02+02:00

If I try to split the url and submit those link with date or without is is still rejected.

At some point I see where are my sitemaps: https://example.com/storage/public/sitemap-index.xml

<!-- Generated by https://git.io/phpseo -->
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap>
<loc>https://example.com/storage/public/articles.xml</loc>
<lastmod>2021-12-06T20:58:02+02:00</lastmod>
</sitemap>
<sitemap>
<loc>https://example.com/storage/public/sitemap.xml</loc>
<lastmod>2021-12-06T20:58:02+02:00</lastmod>
</sitemap>
</sitemapindex>

This is accepted but Google find 0 url...
So I have to submit separately:
https://example.com/storage/public/articles.xml
https://example.com/storage/public/sitemap.xml

This bug has been demonstrated on show2.tiki.org

Please demonstrate your bug on show2.tiki.org

This bug has been demonstrated on show.tikiwiki.org

Please demonstrate your bug on show.tikiwiki.org