Automatically removes leading and trailing spaces from tags because tags

are often entered with a space after each comma.
This uses .trim() in func.render_tags() to remove when rendering as well
as .map(str => str.trim()) when a post or post edit is submitted so they
are also stored without spaces.

src/functions.js

@@ -44,7 +44,7 @@ export function render_tags(tags) {
     }
     else {
         for (let tag_index = 0; tag_index < tags.length; tag_index++) { // Loop over each tag
-            string += `<a href="/tag/${tags[tag_index]}">${tags[tag_index]}</a>` // Adds the tag to the string as a HTML href
+            string += `<a href="/tag/${tags[tag_index].trim()}">${tags[tag_index].trim()}</a>` // Adds the tag to the string as a HTML href
             if (tag_index < tags.length - 1) { // If there are more tags, then insert a comma
                 string += ", ";
             }

src/server.js

@@ -360,7 +360,7 @@ app.post("/submit_post", (req,res) => {
 	const username = func.escape_input(req.body.username)
 	const title = func.escape_input(req.body.title)
 	const content = req.body.content
-	const tags = func.escape_input(req.body.tags).split(',');
+	const tags = func.escape_input(req.body.tags).split(',').map(str => str.trim());
 	const unix_timestamp = getUnixTime(new Date())
 
 	if (func.get_userID(username) == -1) {
@@ -486,7 +486,7 @@ app.post("/submit_edit_post", (req,res) => {
     const userID = req.body.userID
     const title = func.escape_input(req.body.title)
     const content = req.body.content
-    const tags = func.escape_input(req.body.tags).split(",")
+    const tags = func.escape_input(req.body.tags).split(",").map(str => str.trim());
     const delete_bool = req.body.delete
     const unix_timestamp = getUnixTime(new Date())
     console.log(users[userID]['prettyname'], "is editting the post titled:", title);