问题
I included a Twitter button on my page, using the code from https://about.twitter.com/resources/buttons
A very basic implementation looks like this
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<a href="https://twitter.com/share" class="twitter-share-button">Tweet</a>
<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
</body>
</html>Is runs perfectly in all browsers, except IE8, where it triggers an error: SCRIPT1010: Expected identifier File: widgets.js, Line: 1, Column: 29036
in file https://platform.twitter.com/widgets.js
I don't see how my implementation could be wrong. Does anyone have an idea or is this really an IE8 bug in the Twitter code?
回答1:
According to Twitter widgets.js throws JavaScript error "Expected identifier" on IE8, Twitter stopped supporting IE8 in January 2015.
My "solution" was therefore to use conditional comments <!--[if gt IE 8]><!-->
TWITTER CODE HERE <!--<![endif]-->
to disable the tweet button in IE8 and lower.
来源：https://stackoverflow.com/questions/28178051/twitter-button-causing-js-error-in-ie8-expected-identifier