如何在Chrome扩展中使用内容脚本文件注入CSS? [英] How to inject CSS using content script file in Chrome extension?
问题描述
content_scripts:[
{
matches:[http://www.google.com/*],
js:[script.js]
}
$,
我找到类似的问题关于注入CSS,但我在使用接受答案。这是我的 script.js
内容:
var link = document.createElement (链接);
link.href = chrome.extension.getURL(style.css);
link.type =text / css;
link.rel =stylesheet;
document.getElementsByTagName(head)[0] .appendChild(link);
在我加载一些页面后,此消息出现在控制台中:
拒绝加载
chrome-extension://phkgaaiaakklogbhkdnpjncedlbamani/fix.css。资源
必须列在web_accessible_resources清单键中,以
的形式被扩展名外的页面加载。
有没有办法解决这个问题?或者,也许,从JavaScript文件注入CSS的其他方式是什么?
注意:我无法直接从清单包含样式表。
您可以添加到清单的权限字段中;请参阅 web_accessible_resources 。所以你可以把它加到清单中:
,web_accessible_resources:[
fix.css
另见程序注入。和 insertCSS()
。
对于大多数应用程序,请忘记所有 createElement
代码,并将CSS文件添加到清单中:
content_scripts:[
{
matches:[http://www.google.com/*] ,
css:[fix.css],
js:[script.js]
}
],
尽管我明白你不想在这个确切的实例中这样做。
I'm trying to inject my CSS from JavaScript which is injected as content script:
"content_scripts": [
{
"matches": ["http://www.google.com/*"],
"js": ["script.js"]
}
],
I found similar question about injecting CSS, but I encountered a problem while using code from accepted answer. Here's my script.js
contents:
var link = document.createElement("link");
link.href = chrome.extension.getURL("style.css");
link.type = "text/css";
link.rel = "stylesheet";
document.getElementsByTagName("head")[0].appendChild(link);
After I load some page this message appears in console:
Denying load of chrome-extension://phkgaaiaakklogbhkdnpjncedlbamani/fix.css. Resources must be listed in the web_accessible_resources manifest key in order to be loaded by pages outside the extension.
Is there any way to fix this? Or, maybe, some other way to inject a CSS from that JavaScript file?
Note: I can't include style sheet directly from manifest.
You could add to the manifest's permissions field; See web_accessible_resources. So you would add this to the manifest:
, "web_accessible_resources": [
"fix.css"
]
See also "Programmatic injection". and insertCSS()
.
For most applications, forget all that createElement
code and just add the CSS file to the manifest:
"content_scripts": [
{
"matches": ["http://www.google.com/*"],
"css": ["fix.css"],
"js": ["script.js"]
}
],
although I understand that you don't want to do that in this exact instance.
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