What is the solution to the failure of selected = selected under FireFox?

Today, I will talk to you about the solution to the ineffectiveness of selected = selected failure under FireFox. Many people may not know much about it. In order to make you understand better, the editor summarized the following content for you. I hope you can get something according to this article.

When you use javascript to dynamically change the selected property of select, it is found that it does not work.

Some hello clearly has selected = 'selected', but it is not chosen.

Only pre-written hello will show that it is selected.

This problem only occurs under firefox5, not under FF4, so I wonder if it is a BUG of FF5.

The possible reason is that FF5 caches some of the attributes of the dom element that were initially loaded for performance reasons, while when using F5 refresh, FF still uses the attributes in the cache instead of the new ones.

You can render new properties only if you use CTRL+F5 to force a refresh.

Finally, the solution was found in stackoverflow: http://stackoverflow.com/questions/6849057/firefox-5-not-using-select-selected-value-on-page-refresh-retaining-old-value

It says that all you have to do is add autocomplete = 'off "to the select tag

I tried it, and it really worked.

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