return eval errors during export

lchjczw · Dec 3, 2018 · fc17d70 · fc17d70
1 parent b4edb94
commit fc17d70
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/export.go b/export.go
@@ -20,7 +20,9 @@ const (
 // you may use PageA4Width and PageA4Height constants.
 func PDF(url, script string, width, height int) ([]byte, error) {
  return doHeadless(url, func(c *chrome) ([]byte, error) {
- c.eval(script)
+ if _, err := c.eval(script); err != nil {
+ return nil, err
+ }
  return c.pdf(width, height)
  })
 }
@@ -35,7 +37,9 @@ func PDF(url, script string, width, height int) ([]byte, error) {
 // for example when preparing Lorca app icons.
 func PNG(url, script string, x, y, width, height int, bg uint32, scale float32) ([]byte, error) {
  return doHeadless(url, func(c *chrome) ([]byte, error) {
- c.eval(script)
+ if _, err := c.eval(script); err != nil {
+ return nil, err
+ }
  return c.png(x, y, width, height, bg, scale)
  })
 }