Recently, a weird problem occured in my current typo3 – project. The caching was configured properly (out of the box configuration) and all caching tables were written as they should – but with a very confusing behaviour: the whole page was generated completely new by typo3 on each page request, which caused high server load. The error was not caused by an overriden no_cache-value or one of the other usual suspects (USER_INT, config – directives). After spending days trying to find a fix for the problem, i finally found a solution:

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