I have been learning express and everything seems to be clicking into place so I am trying now to concentrate on organization and keeping things clean and intuitive. I am wondering if there is a convention for storing where certain files are stored to be accessed by my server? The idea is for example I have a directory something like this:
root/
|--html
|--html1.html
but I want to change the structure mid project to:
root/
|--assets
|--html
|--html1.html
Or for example as a site scales I decide to move my public directory to S3 or some other cloud storage instead.
Now I have to go back everywhere that sends that file and change the path or the entire middleware to send an s3 file. My solution is this, and it works, but I am not sure if it is optimal or if there is a convention that might be better.
I can store everything in an asset module like this which has methods to return a file:
function getFile(path){
return fs.readFileSync(path)
}
module.exports = {
html1: getFile(`${__dirname}/html/html1.html`),
html2: getFile(`${__dirname}/html/html2.html`,
image1: getFile(`${__dirname}/image/image1.html`
}
and import it into my server as "assets" and use it like this:
app.get('/*', (req, res, next) => {
res.set('Content-Type', 'text/html');
res.send(assets.html1);
});
Now if I want to change the path or even use an asset from s3 I can simply change the logic/function/path etc all in one place rather than going through all my routers manually etc.
Any feedback or guidance on where to look for more info is greatly appreciated!
Why am I getting this error in console?
Refused to execute script from
'https://www.googleapis.com/customsearch/v1?key=API_KEY&q=flower&searchType=image&fileType=jpg&imgSize=small&alt=json'
because its MIME type ('application/json') is not executable, and
strict MIME type checking is enabled.
In my case it was a file not found, I typed the path to the javascript file incorrectly.
You have a <script> element that is trying to load some external JavaScript.
The URL you have given it points to a JSON file and not a JavaScript program.
The server is correctly reporting that it is JSON so the browser is aborting with that error message instead of trying to execute the JSON as JavaScript (which would throw an error).
Odds are that the underlying reason for this is that you are trying to make an Ajax request, have hit a cross origin error and have tried to fix it by telling jQuery that you are using JSONP. This only works if the URL provides JSONP (which is a different subset of JavaScript), which this one doesn't.
The same URL with the additional query string parameter callback=the_name_of_your_callback_function does return JavaScript though.
This result is the first that pops-up in google, and is more broad than what's happening here. The following will apply to an express server:
I was trying to access resources from a nested folder.
Inside index.html i had
<script src="./script.js"></script>
The static route was mounted at :
app.use(express.static(__dirname));
But the script.js is located in the nested folder as in: js/myStaticApp/script.js
I just changed the static route to:
app.use(express.static(path.join(__dirname, "js")));
Now it works :)
Try to use express.static() if you are using Node.js.
You simply need to pass the name of the directory where you keep your static assets, to the express.static middleware to start serving the files directly. For example, if you keep your images, CSS, and JavaScript files in a directory named public, you can do as below −
i.e. : app.use(express.static('public'));
This approach resolved my issue.
In my case, I was working on legacy code
and I have this line of code
<script type="text/javascript" src="js/i18n.js.php"></script>
I was confused about how this supposed to work this code was calling PHP file not js
despite it was working on the live server
but I have this error on the stage sever
and the content type was
content-type: text/html; charset=UTF-8
even it is text/javascript in the script tag
and after I added
header('Content-Type: text/javascript');
at the beginning for file i18n.js.php
the error is fixed
After searching for a while I realized that this error in my Windows 10 64 bits was related to JavaScript. In order to see this go to your browser DevTools and confirm that first. In my case it shows an error like "MIME type ('application/javascript') is not executable".
If that is the case I've found a solution. Here's the deal:
Borrowing user "ilango100" on https://github.com/jupyterlab/jupyterlab/issues/6098:
I had the exact same issue a while ago. I think this issue is specific to Windows. It is due to the wrong MIME type being set in Windows registry for javascript files. I solved the issue by editing the Windows registry with correct content type:
regedit -> HKEY_LOCAL_MACHINE\Software\Classes -> You will see lot of folders for each file extension -> Just scroll down to ".js" registry and select it -> On the right, if the "Content Type" value is other than application/javascript, then this is causing the problem. Right click on Content Type and change the value to application/javascript
enter image description here
Try again in the browser."
After that I've realized that the error changes. It doesn't even open automatically in the browser anymore. PGAdmin, however, will be open on the side bar (close to the calendar/clock). By trying to open in the browser directly ("New PGAdmin 4 window...") it doesn't work either.
FINAL SOLUTION: click on "Copy server URL" and paste it on your browser. It worked for me!
EDIT: Copying server URL might not be necessary, as explained by Eric Mutta in the comment below.
I accidentally named the js file .min instead of .min.js ...
Python flask
On Windows, it uses data from the registry, so if the "Content Type" value in HKCR/.js is not set to the proper MIME type it can cause your problem.
Open regedit and go to the HKEY_CLASSES_ROOT make sure the key .js/Content Type has the value text/javascript
C:\>reg query HKCR\.js /v "Content Type"
HKEY_CLASSES_ROOT\.js
Content Type REG_SZ text/javascript
In my case (React app), just force cleaning the cache and it worked.
I had my web server returning:
Content-Type: application\javascript
and couldn't for the life of me figure out what was wrong. Then I realized I had the slash in the wrong direction. It should be:
Content-Type: application/javascript
In my case, while executing my typescript file,
I wrote:
<script src="./script.ts"></script>
Instead of:
<script src="./script.js"></script>
In my case Spring Security was looking for authentication before allowing calls to external libraries. I had a folder /dist/.. that I had added to the project, once I added the folder to the ignore list in my WebSecurityConfig class, it worked fine.
web.ignoring().antMatchers("/resources/**", "/static/**", "/css/**", "/js/**", "/images/**", "/error", "/dist/**");
Check for empty src in script tag.
In my case, i was dynamically populating src from script(php in my case), but in a particular case src remained empty, which caused this error. Out was something like this:
<script src=""></script> //empty src causes error
So instead of empty src in script tag, I removed the script tag all together.
Something like this:
if($src !== ''){
echo '<script src="'.$src.'"></script>';
}
You can use just Use type
or which you are using you choose that file type
My problem was that I have been putting the CSS files in the scripts definition area just above the end of the
Try to check the files spots within your pages
I am using SpringMVC+tomcat+React
#Anfuca's answer does not work for me(force cleaning the browser's cache)
I used Filter to forward specific url pattern to the React's index.html
public class FrontFilter extends HttpFilter {
#Override
protected void doFilter(HttpServletRequest req, HttpServletResponse res, FilterChain chain) throws IOException, ServletException {
boolean startsWithApi = requestURI.startsWith("/api/");
boolean isFrontendUri = requestURI.startsWith("/index.html");
if (!startsWithApi && !isFrontendUri) {
req.getRequestDispatcher("/index.html").forward(req, res);
}
super.doFilter(wrapped, res, chain);
}
}
There is no Spring Security problem bcs my filter executes before Spring Security's
but I still see the same error and find here
Then I realized that I forgot adding one more condition for JS and CSS:
boolean startsWithStatic = requestURI.startsWith(contextPath + "/static");
Add this to my if condition and problem solved, no more error with MIME type or ('text/html') with js and css
Root cause is that I incorrectly forward JS and CSS type to HTML type
I got the same error. I realized my app.js was in another folder. I just moved it into that folder where my index.html file is and it resolved.
In Angular Development try this
Add the code snippet as shown below to the entry html. i.e "index.html" in reactjs
<div id="wrapper"></div>
<base href="/" />
If you have a route on express such as:
app.get("*", (req, res) => {
...
});
Try to change it for something more specific:
app.get("/", (req, res) => {
...
});
For example.
Or else you just might find yourself recursively serving the same HTML template over and over...
In my case I had a symlink for the 404'd file and my Tomcat was not configured to allow symlinks.
I know that it is not likely to be the cause for most people, but if you are desperate, check this possibility just in case.
I hade same problem then i fixed like this
change "text/javascript"
to
type="application/json"
I solved my problem by adding just ${pageContext.request.contextPath} to my jsp path .
in stead of :
<script src="static/js/jquery-3.2.1.min.js"></script>
I set :
<script src="${pageContext.request.contextPath}/static/js/jquery-3.2.1.min.js"></script>
Basic question time:
I'm new to node.js/express/ejs.
How do I add a new ejs powered page to my server?
Example: I want to have a new page on my server that shows up as mysite.com/foo.html, and I want it to be rendered through app.router & ejs. How do I add this page and start to edit it?
I've started by working from the example of index.*js* that comes with the default express --ejs install. But digging into that code, 'find ./ -name "index.*js*"' comes up with no less than 25 different files that might be involved in producing that two-line index page.
Start me on the right path?
In your views directory add a file named foo.ejs and add the EJS you want to be rendered.
Then create another file named foo.js in the routes directory. Here is what the content
module.exports.index = function(req, res){
res.index('foo');
};
In the main express app file (the one you run via node app.js) first require the new route
var foo = require('./routes/foo');
then tell express about it
app.get('/foo.html', foo.index);
This is my app structure.
Yeoman with angular and coffee server(node+express) which gets view and public files via /app/.
View files:
app.set("view_engine", "html").engine "html", (path, options, fn) ->
if "function" is typeof options
fn = options
options = {}
fs.readFile path, "utf8", fn
Public files:
app.use express.static(path.resolve(__dirname + "/app/"))
I do load a lot of components like bootstrap, theme files,etc. HOwever, Javascript inside a view file doesnt work. It does work normally.
For example, if i remove and replace with for morris charts, it works. The same with ng-app and a view file with does not load the chart.
I think the problem is loading the js files first, since when i tried logging, the javascript file sends message before the controller for the view. So i guess the js file loads before the view thereby making the id inaccessible for the javascript file.
Please tell me how to solve this. It has been bugging me for over two days.
Thanks in advance.
Probably answered here: https://stackoverflow.com/a/12200540/1794563
Are you including jQuery before angularJS? If not, angularJS is using jqLite, which won't handle a situation like that.
i am trying to use durandal.js for single page architecture,
i already have application where i am loading all pages in div = old approach for single page architecture,
what i want to do is when i click on page i need to open hotspa pages,
for now i write something like this . www.xyz.com#/details,
where # details is my durandal view page!
when i put <a> herf ....#/details, i got error like this :
http://postimg.org/image/hoeu1wiz5/
but when i refresh with same url, it is working fine, i am able to see view!
i do not know why i got this error
If you are using anything before version 2.0 of Durandal, you are getting this because in your Shell.js you are not defining router, or you have a bad definition of where the router module is, or possibly you are defining scripts in your index instead of 'requiring them' via require.js
1st - Check shell.js, at the top you should have a define function and it should say / do something like this, and should be exposing that to the view like so -
define(['durandal/plugins/router'], function (router) {
var shell = {
router: router
};
return shell;
};
2nd - Check and make sure the 'durandal/plugins/router' is point to the correct location in the solution explorer, in this case it is app > durandal > plugins > router. If it is not or if there is no router you can add it using nuget.
3rd - Make sure you aren't loading scripts up in your index or shell html pages. When using require.js you need to move any scripts you are loading into a require statement for everything to function properly. The 'Mismatched anonymous define() module' error usually occurs when you are loading them elsewhere - http://requirejs.org/docs/errors.html#mismatch