I need to redirect users to login page if they are not authenticated. I need something like route.beforeEach in Vue.js, ideally:  sapper.beforeRouteChange((to, from, next) => {    const isAuth = "[some session or token check]";    if (!isA...

I've decided try out Svelte for my next website, and this will be a static website hosted using GitLab pages.  I got the basic compilation working which generates dist/bundle.js and dist/bundle.css.  The issue is that I cannot upload this dist fo...

I'm receiving raw html snippets from a headless CMS that I need to render as-is in a Sapper application.   This also includes cases where I receive an opening tag and the corresponding closing tag as two pieces of HTML between which I add a Svelt...

I created register page, and submit without any input. I got 200 ok though backend server raise 400 reseponsed how can i get right status on my js code?       below image is api call to my backend server and responsed 400 status    api.js  const base...

My sapper app revolves around a table component. This table component has state (offset, limit, sort, filters, etc) that I would like to represent in the query string of the URL.  The table works fine currently by directly updating its state:  <bu...

I am using Sapper with Svelte to create a static website.  Because my website is static, I won't be bothering with a server and will use the sapper export command to generate static files which I can host on GitLab pages.  I have therefore remove...

I am creating a sveltejs/sapper app. I am trying to post some info from the frontend to the backend express server using axios in the script tag. Although get requests from external sources are succeeding, axios is throwing a 404 error while posting...

I'm using Svelte and Sapper for a project. Let's say I have some code that needs to read a cookie before it runs, and that code is in a route at say /profile or something.  My understanding is that Sapper provides no guarantees where the code...

Svelte 3: Props and array of children components  I'm planning to code a board game on hexagonal tiles, based on the excellent redblobgames articles, and coded with Svelte 3 / Sapper.  My question is about commmunication between children comlpone...

I am creating a Sapper page, where I'd like to use Google Sign-in button. It requires data-onsuccess attribute to specify callback function. From what I was able to discover from Google's platform JS library, it looks for the function in the...