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Span tags showing on an MDN page

  • 3 svar
  • 1 har dette problem
  • 10 visninger
  • Seneste svar af Wizardgoat

Wizardgoat
Wizardgoat
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I'm using FF29 to access https://developer.mozilla.org/en-US/Add-ons/Overlay_Extensions/XUL_School/The_Essentials_of_an_Extension . The span tags from the HTML are showing up in certain text boxes, and make the text very difficult to read. The text sometimes briefly displays correctly on initial page load, but in a few seconds, when all the css is applied and the font changes, the span tags show up in the text. I can display the page in IE8 and don't have this problem. It this the result of some setting? I notice that there is a notification inserted at the top of the page about a recent security breach. I wonder if insertion of this notice is throwing off some of the subsequent page content? 

I will shortly post two screen prints, for FF and IE8. (It would be nice if screen prints could be uploaded with the original question.)
I'm using FF29 to access https://developer.mozilla.org/en-US/Add-ons/Overlay_Extensions/XUL_School/The_Essentials_of_an_Extension . The span tags from the HTML are showing up in certain text boxes, and make the text very difficult to read. The text sometimes briefly displays correctly on initial page load, but in a few seconds, when all the css is applied and the font changes, the span tags show up in the text. I can display the page in IE8 and don't have this problem. It this the result of some setting? I notice that there is a notification inserted at the top of the page about a recent security breach. I wonder if insertion of this notice is throwing off some of the subsequent page content? I will shortly post two screen prints, for FF and IE8. (It would be nice if screen prints could be uploaded with the original question.)

Alle svar (3)

user633449
user633449
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Please update to Firefox 31 before posting screenshots, 29 is not supported anymore

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
Wizardgoat
Wizardgoat Spørgsmålsstiller
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Starting in Safe Mode did not fix the problem.

The affected text box is about 3/4 of the way down the page. The paragraph just before it reads "DTD strings are resolved and set when...".

The affected text box begins "let helloItem = document.getElementById...".

When the page gets fully loaded, the span tags abruptly appear in the text box. I'm wondering if others are seeing this problem as well? Maybe the page really has a bug at the moment.