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I don't think it has something to do with Drupal. I faced similar issue before in WordPress and it was because of mod_security rules. Mod_security was blocking passing parameters in URLs. The top answer in this postpost might help you.
I don't think it has something to do with Drupal. I faced similar issue before in WordPress and it was because of mod_security rules. Mod_security was blocking passing parameters in URLs. The top answer in this post might help you.
I don't think it has something to do with Drupal. I faced similar issue before in WordPress and it was because of mod_security rules. Mod_security was blocking passing parameters in URLs. The top answer in this post might help you.
I don't think it has something to do with Drupal. I faced similar issue before in WordPress and it was because of mod_security rules. Mod_security was blocking passing parameters in URLs. The top answer in this post might help you.