Аналогичная проблема, выдаёт:
Mixed Content: The page at 'https://autoplanet.pro/' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'autoplanet.pro/category/location?term=rom'. This request has been blocked; the content must be served over HTTPS.
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Mixed Content: The page at 'https://autoplanet.pro/' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'autoplanet.pro/category/location?term=rom'. This request has been blocked; the content must be served over HTTPS.