(core) Support GRIST_INCLUDE_CUSTOM_SCRIPT_URL for custom scripts, specifically for rapid prototyping support

Test Plan: Tested manually on localhost Reviewers: paulfitz, georgegevoian Reviewed By: paulfitz, georgegevoian Subscribers: paulfitz, georgegevoian Differential Revision: https://phab.getgrist.com/D4186
4 months ago · 7de33078f3
parent b64802dfe8
commit 7de33078f3
3 changed files with 9 additions and 0 deletions
--- a/app/server/lib/sendAppPage.ts
+++ b/app/server/lib/sendAppPage.ts
@ -116,6 +116,12 @@ export function makeSendAppPage(opts: {
  baseDomain?: string
 }) {
  const {server, staticDir, tag, testLogin} = opts;
+
+  // If env var GRIST_INCLUDE_CUSTOM_SCRIPT_URL is set, load it in a <script> tag on all app pages.
+  const customScriptUrl = process.env.GRIST_INCLUDE_CUSTOM_SCRIPT_URL;
+  const insertCustomScript: string = customScriptUrl ?
+    `<script src="${customScriptUrl}" crossorigin="anonymous"></script>` : '';
+
  return async (req: express.Request, resp: express.Response, options: ISendAppPageOptions) => {
    const config = makeGristConfig({
      homeUrl: !isSingleUserMode() ? server.getHomeUrl(req) : null,
@ -153,6 +159,7 @@ export function makeSendAppPage(opts: {
      .replace("<!-- INSERT BASE -->", `<base href="${staticBaseUrl}">` + tagManagerSnippet)
      .replace("<!-- INSERT LOCALE -->", preloads)
      .replace("<!-- INSERT CUSTOM -->", customHeadHtmlSnippet)
+      .replace("<!-- INSERT CUSTOM SCRIPT -->", insertCustomScript)
      .replace(
        "<!-- INSERT CONFIG -->",
        `<script>window.gristConfig = ${jsesc(config, {isScriptContext: true, json: true})};</script>`
--- a/static/app.html
+++ b/static/app.html
@ -17,6 +17,7 @@
 <!-- INSERT LOCALE -->
 <!-- INSERT CONFIG -->
 <!-- INSERT CUSTOM -->
+<!-- INSERT CUSTOM SCRIPT -->

 <title><!-- INSERT TITLE --><!-- INSERT TITLE SUFFIX --></title>
 </head>
--- a/static/error.html
+++ b/static/error.html
@ -8,6 +8,7 @@
  <!-- INSERT LOCALE -->
  <!-- INSERT CONFIG -->
  <!-- INSERT CUSTOM -->
+  <!-- INSERT CUSTOM SCRIPT -->
  <title>Loading...<!-- INSERT TITLE SUFFIX --></title>
 </head>
 <body>