Exception/CMS/1544172838
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RuntimeException : Error handler could not fetch error page(due to no internet connection or protected )
Migrating from Fluidpages to Flux
If this exception appears while migrating from Fluidpages to Flux, verify that the corresponding Flux-TS is included.
404 error handler set to "Display content from page" (TYPO3 9.x)
(1/1) #1544172838 Error handler could not fetch error pageuntimeException Error handler could not fetch error page "https://project.localdomain.vm/http-error-404", reason: cURL error 51: SSL: no alternative certificate subject name matches target host name 'project.localdomain.vm' (see https://curl.haxx.se/libcurl/c/libcurl-errors.html)
When you have set your 404-error-handler to "Display content from page" on a development domain, cURL can't call the target page when the certificate isn't valid.
Solution: test again without SSL or test on a staging system with a properly installed valid certificate.
self signed certificate problem
(1/1) #1544172838 RuntimeException Error handler could not fetch error page "https://example.de/startseite", reason: cURL error 60: SSL certificate problem: self signed certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html)
in /path/typo3_src-9.5.21/typo3/sysext/core/Classes/Error/PageErrorHandler/PageContentErrorHandler.php line 79
if ($resolvedUrl !== (string)$request->getUri()) {
$content = GeneralUtility::getUrl($resolvedUrl, 0, null, $report);
if ($content === false && ((int)$report['error'] === -1 || (int)$report['error'] > 200)) {
throw new \RuntimeException('Error handler could not fetch error page "' . $resolvedUrl . '", reason: ' . $report['message'], 1544172838);
}