403 error on submit at the plugin options page

I have solved this by adding the word “content” to the field name 

<textarea rows="5" cols="20" name="ad1_content"><?php echo stripslashes(  get_option('ad1_content') )?></textarea>

It then worked just fine

I think this is a security issue that accepted the script tag for fields containing content (used by wordpress in editor by the way) in name and rejecting the others.

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