Menu
I'm trying to write a script for Tampermonkey that prevents the execution of a specific inline script tag. The body of the page looks something like this
<body>
<!-- the following script tag should be executed-->
<script type="text/javascript">
alert("I'm executed as normal")
</script>
<!-- the following script tag should NOT be executed-->
<script type="text/javascript">
alert("I should not be executed")
</script>
<!-- the following script tag should be executed-->
<script type="text/javascript">
alert("I'm executed as normal, too")
</script>
</body>
I tried to remove the script tag using my Tampermonkey script, but if I run it at document-start or document-body the script tag does not exist yet. If I run it at document-end or document-idle the script tag I'd like to remove is run before my Tampermonkey script is executed.
How can I prevent execution of the script tag?
Note: The actual script tag that I'd like to prevent from executing contains window.location = 'redirect-url'. So it would also be sufficient to prevent the reload in this case.
Versions:
418
Delete script tag on document-start (as suggested by wOxxOm):
(function() {
'use strict';
window.stop();
const xhr = new XMLHttpRequest();
xhr.open('GET', window.location.href);
xhr.onload = () => {
var html = xhr.responseText
.replace(/<script\b[\s\S]*?<\/script>/g, s => {
// check if script tag should be replaced/deleted
if (s.includes('window.location')) {
return '';
} else {
return s;
}
});
document.open();
document.write(html);
document.close();
};
xhr.send();
})();
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With