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Home/ Questions/Q 4016426
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Editorial Team
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Editorial Team
Asked: May 20, 20262026-05-20T09:44:19+00:00 2026-05-20T09:44:19+00:00

I am using this captcha code in a jsp. I call the jsp by

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I am using this captcha code in a jsp. I call the jsp by the following code using iframe:

 <iframe id="captchaframe"  align="center" name="captchaframe" src="captcha.jsp" width="120" height="40" scrolling="no"
      frameborder="0" marginheight="-10" marginwidth="-10"/></iframe>    

With explorer everything works pretty as in this picture:

But in Firefox the characters become something else entirely like in this picture:

How can I fix this?

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  1. Editorial Team
    Editorial Team
    2026-05-20T09:44:19+00:00Added an answer on May 20, 2026 at 9:44 am

    I guess Firefox doesn’t recognise the output of your jsp file as image. Did you set mime content-type to image?

    http://www.w3.org/Protocols/rfc1341/4_Content-Type.html

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