News + realURL + i18n in Typo3 = cHash error - php

Question

I managed to make news (tx_news) work realurl under the default language. Then I wanted to localize the news, so I created transaltions for them. However when I access the list view for a non-default language, it fails with
Request parameters could not be validated (&cHash comparison failed)
The failing link does not contain cHash, it looks like this
http://host.com/mysite/en/about-us/
What could be the cause and how to fix it? Here is the realURL setup
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl']=array (
'_DEFAULT' =>
array (
'init' =>
array (
'enableCHashCache' => true,
'enableCHashCache' => 1,
'respectSimulateStaticURLs' => 0,
'appendMissingSlash' => 'ifNotFile,redirect',
//'adminJumpToBackend' => true,
'enableUrlDecodeCache' => true,
'enableUrlEncodeCache' => true,
'emptyUrlReturnValue' => '/mysite/',
),
'pagePath' =>
array (
'type' => 'user',
'userFunc' => 'EXT:realurl/class.tx_realurl_advanced.php:&tx_realurl_advanced->main',
'spaceCharacter' => '-',
'languageGetVar' => 'L',
'rootpage_id' => '1',
'firstHitPathCache'=> '1',
),
'preVars' =>
array (
0 =>
array (
'GETvar' => 'L',
'valueMap' =>
array (
'cs' => '1',
),
'noMatch' => 'bypass',
),
),
'fixedPostVars' => array(
'19' => array(
array(
'GETvar' => 'tx_news_pi1[controller]',
'noMatch' => 'bypass',
),
array(
'GETvar' => 'tx_news_pi1[action]',
'noMatch' => 'bypass',
),
array(
'GETvar' => 'tx_news_pi1[news]',
'lookUpTable' => array(
'table' =>
'tx_news_domain_model_news',
'id_field' => 'uid',
'alias_field' => 'title',
'addWhereClause' => ' AND NOT deleted',
'useUniqueCache' => 1,
'useUniqueCache_conf' => array(
'strtolower' => 1,
'spaceCharacter' => '-',
),
'enable404forInvalidAlias' => '1',
'languageGetVar' => 'L',
'languageExceptionUids' => '',
'languageField' => 'sys_language_uid',
'transOrigPointerField' => 'l10n_parent',
),
),
),
),
),
);

Answer 1

With this error I had fight a lot.
Go to Typo3 Install Tool => All configuration and change the value 1 => 0 for this attribute.
[FE] [pageNotFoundOnCHashError] = 0
I hope this gona solve the problem !!!

Answer 2

I seem to have fixed it by emptying the tx_realurl_chashcache in the database.

Answer 3

I had to disable caching for the page. On my site it seems the "no_cache" parameter is confusing the chash calculation. This way i can keep the - i think important - security setting [FE][pageNotFoundOnCHashError] = 0

Answer 4

In Typo3 8.x version:
click the "Speaking Urls" module in the backend and than do "Flush all entries"
Now when you browse the frontend those entries would get re-created. And every thing should work fine.
Basically here we are deleting all page path entries for all pages so that they get created again.
Also you may delete the entries for the selected page by selecting the option "Delete all entries for this page"