I tried to compose an equation in CK Editor and here it looks like
"https://latex.codecogs.com/gif.latex?%5Cdpi%7B80%7D%20%5Csmall%20%5Cvartheta%20%28%5Caa%29%20+%201" in encrypted form.
Here "plus" is coming explicitly in browser and also in the extracted image, but I am expecting + as a symbol.
My intention is to extract this as an image using curl. Any clue what is wrong here in my approach.