There are still some problems. Mainly in the second duplication.
Let me finish my tests and I will write what is the solution.

OK, after 2 days of work I find where the problems are.
Now everything is working correctly and not duplicated links.

Best regards.

Hi,

JoomSef generate the same link with different manufacturer_id.

For example:

index.php?option=com_virtuemart&category_id=42&flypage=flypage.tpl&manufacturer_id=5&page=shop.product_details&product_id=4411&Itemid=2

and

index.php?option=com_virtuemart&category_id=42&flypage=flypage.tpl&manufacturer_id=19&page=shop.product_details&product_id=4411&Itemid=2

Where manufacturer_id=5 is true.

There are other links that are less (without flypage):

index.php?option=com_virtuemart&category_id=73&flypage=flypage.tpl&manufacturer_id=37&page=shop.ask&product_id=6793&Itemid=2
and
index.php?option=com_virtuemart&category_id=73&flypage=&manufacturer_id=37&page=shop.ask&product_id=6793&Itemid=2

Thus accumulate useless links that point to the same product.
Do you have any idea how to fix this?

JoomSEF version: 3.9.5
VirtueMart extension version: 2.1.1

Hi David,

"Set page base href value" is set and does not help in this case.

But .... after a long battle I found a solution.
I edit file /administrator/components/com_virtuemart/classes/htmlTools.class.php

from


to


and all work fine. :-)

Only I do not understand one thing. Why using JoomSEF 3.6.2 no such problems? What has changed in new versions that require such changes?
In this case, what is better in new versions?

Recommend to a friend showing Error 404 in all IE.
With Mozilla - no problem.

Joomsef 3.6.2 - working
Joomsef 3.6.4 and 3.6.5 - not working.

Virtuemart 1.1.4
Joomla 1.5.17

Yes, now it works.
Many, many thanks.

VirtueMart.
After update from Joomsef 3.6.2 to 3.6.4, when printing an order or product category, showing Error 404 in all IE.
With Mozilla - no problem.

belugha and awlfm,

Try change \modules\mod_rokvirtuemart_categories\helper.php

with attached file. The problem is solved by Susi - RocketTheme forum.