289058 - Degree and Copyright Symbol show up as a question mark on webpages

Status: RESOLVED EXPIRED

(Firefox :: General, defect)

Description

[Chris Bergeson]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

On a number of weather related pages, the degree symbol...such as 98(degree
symbol) F always shows a question mark, insted of the degree symbol. And the
copyright symbol (the 'C' inside the circle) always shows a question mark as
well. I have had a number of people say that is a browser bug, because they have
the same problem.

Reproducible: Always



Expected Results:  
...made the symbols show up correctly...

Comment 1

[Ben Fowler]

You probably need to check the FAQ sheet and other troubleshooting resources
for Firefox.

If you want one person to tell you it is not a broweser bug, kindly post a
URL to a site or page where the problem is visible.

Comment 2

[Chris Bergeson]

http://weather.iowa-skywarn.org
http://www.weather.com/weather/local/50616

It happens on all weather sites where there is a degree symbol, only this
browser subs in the ? for the degree symbol.

Comment 3

[Ben Fowler]

Attachment: Testcase (from http://weather.iowa-skywarn.org/hw3.php)

Thank you. Both the URLs you gace WFM.

I enclose a short testcase which is an excerpt from 
http://weather.iowa-skywarn.org/hw3.php .

On the left the degree symbol is an entity ° and it displays
correctly. On the right the degree symbols are the character ° , and
they display as ¡ . (This is the same as the source of the URL I
quoted)

What do you see in this testcase?

Comment 4

[Chris Bergeson]

Attachment: Heres the copyright flaw

Heres the copyright flaw. It seems as if the degree symbol now shows up.

Comment 5

[Ben Fowler]

Attachment: Testcase (from http://www.hamweather.com/)

This is also WFM.

I attach a testcase with a copyright symbol as the numeric entity: ©

How does this look to you?

Comment 6

[Chris Bergeson]

That also worked. They are now showing up on the testcases, but sometimes i
still see the '?' in place of where the copyright or the degree symbol should
be. Also, what does WFM mean?

Comment 7

[Ben Fowler]

I am not quite clear what it is that is not now working. If a site is not
using entities (or not uisng them correctly) then what the browser displays
will depend on the character set specified for the document, and the font that
you are using.

WFM = works for me.

Do you think that there is a defect in Firefox?

Comment 8

[Chris Bergeson]

Personally, i dont really think so, now that you have given me those tests.
Firefox is, simply put, the best browser i have ever had, and  even if it is a
bug, i dont really care much, i just wanted to let you guys know about this, in
case it was a bug. Thanks again for all of your time.

Comment 9

[Gervase Markham [:gerv]]

This is an automated message, with ID "auto-resolve01".

This bug has had no comments for a long time. Statistically, we have found that
bug reports that have not been confirmed by a second user after three months are
highly unlikely to be the source of a fix to the code.

While your input is very important to us, our resources are limited and so we
are asking for your help in focussing our efforts. If you can still reproduce
this problem in the latest version of the product (see below for how to obtain a
copy) or, for feature requests, if it's not present in the latest version and
you still believe we should implement it, please visit the URL of this bug
(given at the top of this mail) and add a comment to that effect, giving more
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If it is not a problem any longer, you need take no action. If this bug is not
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Thank you for your help in this matter.

The latest beta releases can be obtained from:
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Seamonkey:   http://www.mozilla.org/projects/seamonkey/

Comment 10

[Gervase Markham [:gerv]]

This bug has been automatically resolved after a period of inactivity (see above
comment). If anyone thinks this is incorrect, they should feel free to reopen it.

Comment 11

[wyattwong]

I write my own MathML page and I found that FireFox 10.8.2 displays "invalid-markup" for the degree symbol. However, the degree symbol can be displayed correctly using Chrome 24.0.1312.57.

Please find the source of the MathML page as follows:

<!doctype html>
  <html>
  <head>
  <meta charset="UTF-8">
  <title>Sine and Cosine Angles in surd form</title>
  </head>
  <body>
    <math xmlns="http://www.w3.org/1998/Math/MathML">
      <mrow>
        <mi>sin</mi>
        <mn>15</mn>
        <msup><mo>&#x00b0;<!--Degree--></mo></msup>
        <mi>=</mi>
        <mfrac>
	  <msqrt>
	   <mi>2</mi>
           <mo>-</mo>
           <msqrt>
           <mi>3</mi>
           </msqrt>
	  </msqrt>
          <mrow>
           <mi>2</mi>
          </mrow>
	</mfrac>
      </mrow>
    </math>
  </body>
</html>


For details, please refer to the "7.7.2 Pseudo-scripts" section of MathML in W3C as follows:

http://www.w3.org/TR/MathML3/chapter7.html#chars.pseudo-scripts

Comment 12

[wyattwong]

I checked the BugID 320062 and found that someone reported FireFox cannot display the Cross symbol using <mo>&Cross;</mo> syntax.

I used the similar approach and found that FireFox can successfully displayed the degree symbol using the following syntax:

<mo>&deg;</mo>

Although my problem is solve, I still think the developers of FireFox should update FireFox such that it can display the pseudo-scripts as listed in the W3C MathML page.