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Using the Block and Content wth ExpressJS and express-handlebars

See original GitHub issue

Hi, I am wanting to use the block and content helpers to inject items from my partials to slots in other partials or the base layout file that includes html,head, body etc. I require it straight after handlebars-helpers

var exphbs  = require('express-handlebars');
var hbsHelpers = require('handlebars-helpers');

in my main.hbs template I have the following near the closing body tag

{{{block "test"}}}

and on a partial page I have

{{#content "test" mode="append"}}
blah blah blah
{{/content}}

But when I run up the page it fails to load and I am presented with the following error

Error: Missing helper: "block"
   at Object.<anonymous> (/Users/custa/github/Portfolio/portfolioapp/node_modules/express-handlebars/node_modules/handlebars/dist/cjs/handlebars/base.js:86:13)
   at Object.eval (eval at createFunctionContext (/Users/custa/github/Portfolio/portfolioapp/node_modules/express-handlebars/node_modules/handlebars/dist/cjs/handlebars/compiler/javascript-compiler.js:221:23), <anonymous>:21:72)
   at ret (/Users/custa/github/Portfolio/portfolioapp/node_modules/express-handlebars/node_modules/handlebars/dist/cjs/handlebars/runtime.js:159:30)
   at ret (/Users/custa/github/Portfolio/portfolioapp/node_modules/express-handlebars/node_modules/handlebars/dist/cjs/handlebars/compiler/compiler.js:488:21)
   at ExpressHandlebars._renderTemplate (/Users/custa/github/Portfolio/portfolioapp/node_modules/express-handlebars/lib/express-handlebars.js:247:12)
   at ExpressHandlebars.<anonymous> (/Users/custa/github/Portfolio/portfolioapp/node_modules/express-handlebars/lib/express-handlebars.js:173:21)
   at wrappedPromise.linkTransaction (/Users/custa/github/Portfolio/portfolioapp/node_modules/newrelic/lib/instrumentation/core/globals.js:147:23)
   at wrappedPromise.wrapped [as __NR_wrapper] (/Users/custa/github/Portfolio/portfolioapp/node_modules/newrelic/lib/transaction/tracer/index.js:157:28)
   at wrappedHandler (/Users/custa/github/Portfolio/portfolioapp/node_modules/newrelic/lib/instrumentation/core/globals.js:175:26)

Not sure what I am doing wrong, do I have to somehow register the helpers? Anybody got any thoughts?