如何在URL中添加参数，然后使用Greasemonkey重新加载页面？

Question

The website Quora blurs out most of its content if you're not logged in. One way around this is to add the parameter "?share=1" to its URL. I think the steps to doing this via Greasemonkey are:

0/ stash the current URL

1/ check to see if the parameter is already there. If it is, break.

2/ If not, add parameter.

3/ reload with updated URL.

It is similar to this question but it seems to me that this could be done without regex? I could be wrong.

This is the code I'm trying to use:

// ==UserScript==
// @name       Quora Share
// @namespace  kevmo.info
// @version    0.1
// @description  adds "?share=1" to URLS, i.e. let's you view full Quora content w/o being logged in.
// @include      https://*.quora.com/*
// @include      http://*quora.com/*
// @copyright  Creative Commons
// ==/UserScript==

var url = window.location.href;

if (url.indexOf("?share=1") !== -1){
    break;
}
else{
    url +="?share=1";
    window.location.replace(url)
}

Note: in "settings", i set the script to run at document-start.

I know that this sort of basic approach would not work on other websites, but merely appending "?share=1" should work on Quora (see: http://blog.quora.com/Making-Sharing-Better )

When I visit http://www.quora.com/Animals/What-are-some-mind-blowing-facts-from-the-animal-kingdom , the page does not reload with the desired new URL with the added parameter.

Answer 1

meta-edit: you're using "break;" while not in a looping structure.

    function share_redirect() {
    var new_url = false;

    if (window.location.hash.length === 0  && window.location.search.lenth === 0) {
         new_url = window.location.href+"?share=1"
    } else {

         if (window.location.search.indexOf('share=1') != -1) {
             return false; // already sharing
         }

         if (window.location.search.length && window.location.hash.length) {

             new_url = window.location.href.split('#')[0]+"&share=1"+window.location.hash;
         } else if (window.location.search.length === 0 && window.location.hash.length) {
             new_url = window.location.href.split('#')[0]+"?share=1"+window.location.hash;
         } else {
             new_url = window.location.href+"&share=1";
         }
    }
    if (new_url) {
        window.location = new_url;
    }
}