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Disallow mathml preview on IE < 9. #557

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This commit is contained in:
Frédéric Wang 2013-09-11 12:16:50 +02:00
parent e3914df187
commit 3922f0c07c
1 changed files with 5 additions and 2 deletions
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7
unpacked/extensions/mml2jax.js
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@ -184,8 +184,11 @@ MathJax.Extension.mml2jax = {
createPreview: function (math,script) {
var preview = this.config.preview;
if (preview === "none") return;
if (preview === "mathml") {preview = math}
else if (preview === "alttext" || preview === "altimg") {
if (preview === "mathml") {
// mathml preview does not work with IE < 9, so fallback to alttext.
if (this.MathTagBug) {preview = "alttext"} else {preview = math}
}
if (preview === "alttext" || preview === "altimg") {
var alttext = this.filterPreview(math.getAttribute("alttext"));
if (preview === "alttext") {
if (alttext != null) {preview = MathJax.HTML.TextNode(alttext)} else {preview = null}