javascript - Changing a font-family in an same-domain IFrame -

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i have iframe referencing file on same domain, no issues. through javascript, can change font-size, color, everything. except font-family. weird. let me change properties, family, need!

function changefont()     {         var x = document.getelementbyid("image");         var y = x.contentdocument;         y.body.style.fontsize = "20px";         y.body.style.color = "red";         y.body.style.fontfamily = "algerian";     }  <iframe onload="changefont()" id="image" width="100%" height="400" src="@url.content("~/content/temp.txt")"></iframe>

to change font-family property have because of hyphen.

function changefont() {     var x = document.getelementbyid("image");     var y = x.contentdocument;     y.body.style.fontsize = "20px";     y.body.style.color = "red";     y.body.style["font-family"] = "algerian"; }

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