Issue
I have an Android WebView. I pass HTML to it (as a String). This HTML contains some basic javascript.
Upon load, the HTML attempts to call a javascript function (defined in the <head></head>). This works fine in my browser desktop so I'm sure the HTML/Javascript itself is fine, but it fails to work when I load the same HTML into my WebView.
Here is how I instantiate the WebView:
WebView view = new WebView(context);
WebSettings settings = view.getSettings();
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(false);
view.setWebChromeClient(new CustomWebChromeClient());
view.setWebViewClient(new CustomWebViewClient());
view.loadData(ARBITRARY_HTML, "text/html", "utf-8");
The loaded HTML is:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>My head hurts from head-desking</title>
<style type="text/css">
#content
{
display: none;
}
</style>
<script type="text/javascript">
//<!--
function ShowContent()
{
document.getElementById('content').style.display = 'block';
}
//-->
</script>
</head>
<body onload="ShowContent()">
<div id="content">
This content should be shown, but isn't!
</div>
<div id="other">
All I see is this content... and that makes me question my self worth.
</div>
</body>
</html>
This produces (on Android only) the runtime javascript error: "Uncaught ReferenceError: ShowContent is not defined".
Solution
I have an assumption. The //<!-- ... //--> technique which is a made up hack for really old browsers is so out of date. Try to remove that.
Answered By - Knickedi
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