Implementing AMP-method adds BOM-signature in responses

Im following this guide to implement AMP-pages to my project. https://laravelarticle.com/laravel-amp-optimization

After putting and running protected function mapAmpRoutes() in my routeServiceProvider.php I get a leading BOM-signature (atleast I think it is) in the beginning of all responses from the server.

See this pic from chrome dev tools (red dot before ) https://ibb.co/D9Jz94Y

If I run this in terminal: curl https://mysite.se | less

I get this response always on first line: <U+FEFF><U+FEFF>

If I remove the mapAmpRoutes() the leading BOM disappears. So this method is causing the problem

protected function mapAmpRoutes()
{
    Route::prefix('amp')
        ->middleware('web')
        ->namespace($this->namespace)
        ->group(base_path('routes/web.php'));
}

I am running laravel 7.2. This leading BOM causes AMP-validation to fail so I think I must pass this. Anyone know whats causing this and how to solve it?

gunturhakim

5 years ago

Level 1

Hi Patrik, thanks for making a guide for implement AMP, that really helps me to make my sitehave amp pages

Patriksandgren

5 years ago

Level 8

It wasnt me who wrote the guide. So dont credit me for it. But I now have a solution for this problem.

Patriksandgren

5 years ago

Best Answer

Level 8

I found a solution for this and thought I should share it if someone else encounters the same problem. Here is the solution:

Save your routes file (web.php) in UTF-8 without BOM. I have in some way managed to change VS Code default setting to save it as UTF-8 with BOM. Problem gone!

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