The website is successfully loading the CSS file, but is failing to apply its styles

I am currently working on a React webpage that is hosted from Flask and called through Elixir. However, I am facing an issue where the HTML loads properly, but none of the CSS styles are displayed. Despite Chrome's developer tools showing that the CSS file is loaded with a HTTP status code 200, the styles are not being applied to the HTML page.

Here is the snippet of the HTML page in which React is loaded:

<!DOCTYPE html>
<html>
  <head>
    <title>React App</title>
    <link rel="stylesheet" type="text/css" href="time-period/static/css/main.css"/>
  </head>
  <body>
    <div id="root"></div>
  </body>
</html>

After checking Chrome's inspect tool network tab, everything seems to be loading correctly.

UPDATE

Recently, I discovered an error message in the Google Chrome console:

Resource interpreted as Stylesheet but transferred with MIME type text/html: "http://localhost:3005/time-period/static/css/main.css".
Resource interpreted as Stylesheet but transferred with MIME type text/html: "http://localhost:3005/time-period/static/css/main.fd12a70d.css".

Does anyone have insights into why the CSS might not be getting implemented into the HTML, and any suggestions on how to resolve this issue? Any help would be greatly appreciated!

javascripthtmlcssreactjselixir

Answer №1

The issue here is not related to incorrect css calling, rather it stems from Elixir failing to properly separate the css from the html body when receiving it from flask. Upon default webpage return, the whole page becomes text/html which explains why the file is returned with a status code of 200 but remains unimplemented. To address this issue, you must modify the Elixir return header. The solution will resemble the following snippet. This piece of code should be inserted into the body of the code received from the flask server in order to segregate meta-data from the rest of the code and ensure that the css is returned as type="text/css"

headers_kwlist = Enum.map(example.headers, fn { a, b } -> {String.to_atom(a), b} end)
conn
|> put_resp_content_type(headers_kwlist[:"Content-Type"])
|> html(example.body)

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