Question

我正在尝试使用降价解析器在论坛中制作预览标签，但是当从JavaScript库中定义某些内容时，我收到错误：Uncaught ReferenceError: Showdown is not defined。我已将文件添加到mainifest中，但我无法想到还有什么会导致此问题。

./的manifest.json

{
    "name": "Forum Post Previewer",
    "version": "0.1",
    "manifest_version":2,
    "description":"Adds a preview tab on the post editor",
    "permissions": [
        "activeTab",
        "*://*/*"
    ],
    "content_scripts": [
        {
            "js": ["showdown.js", "previewtab.js"]
        }
    ]
}

./ previewtab.js

// Adding the tab
var tabs = document.getElementsByClassName("nav nav-tabs");
var list = document.createElement("li");
var tab = document.createElement("a");
tab.innerHTML = "Preview";
tab.setAttribute("data-toggle", "tab");
tab.setAttribute("href", "#tab3");
list.appendChild(tab);
document.getElementById("post-editor").parentElement.firstElementChild.appendChild(list);

var md_content = document.getElementById("wmd-input-text").innerHTML;
var html_content = new (Showdown.converter().makeHtml(md_content)); //ted

var content = document.createElement("div");
content.setAttribute("class", "tab-pane");
content.setAttribute("id", "tab3");


var preview = document.createElement("div");
preview.setAttribute("id", "preview");
preview.innerHTML = html_content;

content.appendChild(preview);
document.getElementById("post-editor").appendChild(content);

任何帮助将不胜感激

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0 个答案: